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name
stringlengths
2
112
description
stringlengths
29
13k
source
int64
1
7
difficulty
int64
0
25
solution
stringlengths
7
983k
language
stringclasses
4 values
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
import java.util.*; import java.io.*; public class c104{ static List<Integer>[] adj; static boolean []visited; static int vertex; static int pare; static boolean cycle; public static void dfs(int ind,int par) { visited[ind]=true; for(int i=0;i<adj[ind].size();i++) { int j = adj[ind].get(i); if(visite...
JAVA
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
import java.util.*; /** * Created by IntelliJ IDEA. * User: piyushd * Date: 3/26/11 * Time: 10:53 PM * To change this template use File | Settings | File Templates. */ public class TaskC { void run(){ int n = nextInt(); int m = nextInt(); boolean[][] g = new boolean[n][n]; f...
JAVA
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#include <bits/stdc++.h> using namespace std; const int maxN = 110; int parent[maxN]; void build(int n) { for (int i = 0; i <= n; i++) parent[i] = i; } int find(int n) { if (parent[n] == n) return n; return parent[n] = find(parent[n]); } void disjoint(int a, int b) { int u = find(a); int v = find(b); parent...
CPP
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#include <bits/stdc++.h> using namespace std; int n, m, flag; long long val[105]; vector<int> gra[105]; int dfn[105], low[105], now; void dfs(int s, int f) { dfn[s] = low[s] = ++now; for (int i = 0; i < gra[s].size(); i++) { int e = gra[s][i]; if (e == f) continue; if (dfn[e]) { flag++; } else...
CPP
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#include <bits/stdc++.h> using namespace std; void err(istream_iterator<string> it) { cout << "NEXT\n"; } template <typename T, typename... Args> void err(istream_iterator<string> it, T a, Args... args) { cerr << *it << " = " << a << ", "; err(++it, args...); } template <typename... T> void rd(T&... args) { ((cin...
CPP
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
n, m = map(int, raw_input().split()) edges = [[0] * n for i in range(n)] for i in xrange(m): x, y = map(lambda a: int(a)-1, raw_input().split()) edges[x][y], edges[y][x] = 1, 1 visited = dict() head = 0 loop_points = [] def f(start, nc, prev): global head #print start, nc , prev, visited, edges[start...
PYTHON
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#include <bits/stdc++.h> using namespace std; vector<int> E[1000]; int n, m, x, y, nedges[1001], solution, isam; bool connected[101][101], is_vertice[1001]; void dfs(int node) { isam++; if (is_vertice[node]) solution++; is_vertice[node] = 1; for (int i = 0; i < nedges[node]; i++) { if (!connected[node][E[no...
CPP
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
import java.util.Scanner; public class Solution { static int arr[][]; static int visited[]; static int vertices; static int edges; static int flag =0; public static void dfs(int x,int parent) { if(visited[x]==1) { flag=1; return; } visited[x]=1; for(int i=0;i<=vertices;i++) { if(arr...
JAVA
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
import java.io.*; import java.util.*; public class Task103b{ public static void main(String[] args) { InputStream inputStream = System.in; OutputStream outputStream = System.out; InputReader in = new InputReader(inputStream); PrintWriter out = new PrintWriter(outputStream); ...
JAVA
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
//package beta80; import java.util.Arrays; import java.util.Scanner; import java.util.Vector; public class C { public static int n,m,mark[] , st; public static boolean g[][]; public static Vector<Integer> v[], l; public static void main(String[] args) { Scanner inp = new Scanner(System.in); n = inp.nextInt(...
JAVA
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#include <bits/stdc++.h> using namespace std; void dfs(vector<int>* graph, int sv, bool* visited, int& count, int parent) { visited[sv] = true; for (int i = 0; i < graph[sv].size(); i++) { int p = graph[sv][i]; if (!visited[p]) { dfs(graph, p, visited, count, sv); } else if (p != parent) { c...
CPP
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#include <bits/stdc++.h> using namespace std; int n, m; vector<int> edges[108]; bool visited[108]; void dfs(int n) { visited[n] = 1; for (auto i : edges[n]) { if (!visited[i]) dfs(i); } } int main() { scanf("%d%d", &n, &m); if (n != m) { puts("NO"); return 0; } for (int a, b, i = 1; i <= m; ++...
CPP
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
/* Keep solving problems. */ import java.math.BigInteger; import java.util.*; import java.io.*; public class CFA { BufferedReader br; PrintWriter out; StringTokenizer st; boolean eof; private static final long MOD = 1000 * 1000 * 1000 + 7; private static final int[] dx = {0, -1, 0, 1}; pri...
JAVA
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
import java.io.BufferedReader; import java.io.IOError; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.OutputStream; import java.io.OutputStreamWriter; import java.io.PrintWriter; import java.util.ArrayList; import java.util.Arrays; import java.util.StringTokeniz...
JAVA
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#include <bits/stdc++.h> using namespace std; int n, m; bool use[105]; vector<int> a[105]; queue<int> q; void bfs() { q.push(0); while (!q.empty()) { int p = q.front(); use[p] = 1; q.pop(); for (int i = 0; i < a[p].size(); i++) if (!use[a[p][i]]) q.push(a[p][i]); } } int main() { cin >> n ...
CPP
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
import sys def read_values(): return map(int,raw_input().split()) n,m = read_values() a = [[False]*n for _ in range(n)] for _ in range(m): u,v = read_values() u-=1 v-=1 a[u][v] = True a[v][u] = True for k in range(n): for i in range(n): for j in range(n): a[i][j] |= a[i][k] and a[k][j] res = ...
PYTHON
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
import java.util.*; public class cf103b { static int n,k=0; static int[] color; static boolean[][] g; public static void main(String[] args) { Scanner in = new Scanner(System.in); n = in.nextInt(); int m = in.nextInt(); g = new boolean[n][n]; color = new int[n]; Arrays.fill(color,-1); for(int i=0; i<...
JAVA
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
import java.io.*; import java.util.*; public class test { public static int n,m,f[]; public static int find(int x) { if (f[x] == x) return x; return f[x] = find(f[x]); } public static void main(String[] args) throws Exception { Scanner read = new Scanner(System.in); n = read.nextInt(); m = read.nextInt(); f...
JAVA
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
import java.io.*; import java.util.*; public class Main { public static PrintWriter out; public static ArrayList<Integer>[] adjList; public static boolean[] visited; public static int totalVisited = 0; public static void main(String[] args) { MyScanner sc = new MyScanner(); out = new PrintWriter(new ...
JAVA
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#include <bits/stdc++.h> using namespace std; bool used[105]; int i, n, m, x, y, k; vector<vector<int> > g(105); void dfs(int s) { k++; used[s] = true; for (int i = 0; i < g[s].size(); i++) if (!used[g[s][i]]) dfs(g[s][i]); } int main() { cin >> n >> m; for (i = 0; i < m; i++) { cin >> x >> y; g[x...
CPP
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#include <bits/stdc++.h> using namespace std; int countReVisited = 0; int visited[101]; void dfs(int prev, int n, vector<int> *graph) { visited[n] = 1; for (int i = 0; i < graph[n].size(); i++) { int child = graph[n][i]; if (visited[child] && child != prev) { countReVisited++; continue; } el...
CPP
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#include <bits/stdc++.h> using namespace std; const int N = 105; int counter = 0; int root[N]; int size[N]; int find(int u) { if (u == root[u]) return u; return root[u] = find(root[u]); } int main() { int n, m, x, y; scanf("%d%d", &n, &m); for (int i = 1; i <= n; i++) { root[i] = i; size[i] = 1; } ...
CPP
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
read_line = lambda: [int(i) for i in input().split(' ')] n, m = read_line() g = [[] for i in range(n)] for i in range(m): a, b = [v - 1 for v in read_line()] g[a].append(b) g[b].append(a) seen = [False] * n def dfs(v): if seen[v]: return 0 seen[v], cnt = True, 1 for u in g[v]: ...
PYTHON3
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.PrintWriter; import java.util.ArrayList; import java.util.StringTokenizer; public class temp { static ArrayList<Integer> graph[]; static int n; static boolean visited[]; public s...
JAVA
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
n,m=map(int,input().split()) g=[[]for _ in range(n)] for _ in range(m): a,b=map(int,input().split()) g[a-1].append(b-1) g[b-1].append(a-1) v=[-1]*n c=[-1,-1] r=0 def dfs(x,p): v[x]=p global r,c r+=1 for j in g[x]: if v[j]==-1: dfs(j,x) elif v[x]!=j: i...
PYTHON3
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
//package codeforces; /** * * @author flash36 */ import java.io.*; import java.math.BigInteger; import java.util.*; import java.util.ArrayList; public class Main { int n; ArrayList<Integer>[]G; int[]cl; int[]p; int[]d; boolean[]was; int cycle_st, cycle_end; FastScanner in = new FastScanner(System.in); Prin...
JAVA
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
import java.util.*; import java.io.*; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int n = sc.nextInt(); int m = sc.nextInt(); if (n != m || n < 3){ System.out.println("NO"); return; } int[]...
JAVA
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#include <bits/stdc++.h> using namespace std; int n, m; vector<int> e[110]; int par[110]; int rk[110]; int _find(int a) { if (a == par[a]) return a; par[a] = _find(par[a]); return par[a]; } bool _merge(int a, int b) { a = _find(a); b = _find(b); if (a == b) return false; if (rk[a] > rk[b]) { rk[b]++; ...
CPP
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
import java.util.*; import java.io.*; public class Solution { public static void main (String[] args) throws IOException{ BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); String[] temp=br.readLine().trim().split(" "); int V=Integer.parseInt(temp[0]); int E=Integer.parseInt(temp[1]); ...
JAVA
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
import java.util.*; public class B { public static void main(String[] args) { new B(new FastScanner()); } boolean[][] g; boolean[] seen; int N; boolean isTree(int i, int p) { if (seen[i]) { g[i][p] = false; g[p][i] = false; //System.out.printf("R...
JAVA
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
/* Keep solving problems. */ import java.util.*; import java.io.*; public class CFA { BufferedReader br; PrintWriter out; StringTokenizer st; boolean eof; private static final long MOD = 1000 * 1000 * 1000 + 7; private static final int[] dx = {0, -1, 0, 1}; private static final int[] dy = ...
JAVA
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
import sys import copy n, m = map(int, sys.stdin.readline().split()) g = [[] for i in xrange(105)] visited = [0 for i in xrange(105)] prev = [-1 for i in xrange(105)] cycles = 0 nvis = 0 for i in xrange(m): a, b = map(int, sys.stdin.readline().split()) g[a].append(b) g[b].append(a) def dfs(u): global...
PYTHON
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#include <bits/stdc++.h> using namespace std; int n, m, cnt; vector<int> e[105]; bool f[105]; void dfs(int x) { f[x] = 1, ++cnt; for (int i = 0; i < e[x].size(); ++i) if (!f[e[x][i]]) dfs(e[x][i]); } void work() { int i, x, y; scanf("%d%d", &n, &m); if (n != m) { puts("NO"); return; } for (i =...
CPP
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#include <bits/stdc++.h> using namespace std; const int N = 100500; vector<int> a[N]; bool was[N]; int kol; void dfs(int v, int p = -1) { was[v] = true; for (auto to : a[v]) { if (was[to] && p != to) { kol++; continue; } if (p != to) dfs(to, v); } } int main() { srand(time(NULL)); int ...
CPP
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#include <bits/stdc++.h> int n; char done[102]; char graph[102][102]; void dfs(int v, int n) { int i; done[v] = 'y'; for (i = 1; i <= n; i++) if (graph[v][i]) { if (done[i] == 'n') dfs(i, n); graph[i][v] = graph[v][i] = 0; } } int main() { int i, m, a, b; scanf("%d%d", &n, &m); if (m == ...
CPP
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#Cthulhu n , m = map(int,input().split()) lst = [[] for i in range(n +1)] for i in range(m): x , y = map(int, input().split()) lst[x].append(y) lst[y].append(x) #print(lst) a = [0]*(n+1) b = [0]*(n+1) c = 0 def func(n): global a, b, c, lst a[n] = 1 for j in lst[n]: if a[j] == 1 and b...
PYTHON3
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#include <bits/stdc++.h> using namespace std; const double PI = acos(-1.0); const double eps = 1e-8; int mat[105][105]; int cnt; int n, m; bool err; bool flag[105]; void dfs(int p, int prt) { flag[p] = 1; for (int i = 0; i <= n; ++i) { if (i == prt) continue; if (mat[p][i]) { if (flag[i]) { --...
CPP
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#!/usr/bin/env python3 n, m = map(int, input().rstrip().split()) adj = [[] for i in range(n+1)] vis = [False for i in range(n+1)] for i in range(m): u, v = map(int, input().rstrip().split()) adj[u].append(v) adj[v].append(u) def dfs(cur): cnt = 1 vis[cur] = True for nxt in adj[cur]: ...
PYTHON3
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.LinkedList; import java.util.Queue; import java.util.StringTokenizer; public class Cthulhu { static boolean[][] graph; static boolean visited[]; static int prev[]; public static void bfs(...
JAVA
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#include <bits/stdc++.h> using namespace std; int find(int parent[], int x) { int c; if (parent[x] == x) return x; c = find(parent, parent[x]); return c; } void set_union(int parent[], int rank[], int x, int y) { int xp = find(parent, x); int yp = find(parent, y); if (xp == yp) return; else if (rank...
CPP
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
MAX = 101 parent = [] def makeSet(): global parent parent = [i for i in range(MAX + 1)] def findSet(u): while u != parent[u]: u = parent[u] return u def unionSet(u, v): up = findSet(u) vp = findSet(v) parent[up] = vp makeSet() n, m = map(int, input().split()) for i in range(m): ...
PYTHON3
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#include <bits/stdc++.h> using namespace std; int n, m, a[100][100], v[100]; void flood(int s) { v[s] = 1; for (int t = 0; t < n; t++) if (a[s][t] && !v[t]) flood(t); } int main() { scanf("%d%d", &n, &m); if (n != m) return puts("NO"); memset(v, 0, sizeof(v)); for (int i = 0; i < m; i++) { int x, y;...
CPP
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
class Graph: def __init__(self, n): self.n = n self.adj = [[] for i in range(n)] def add(self, v, u): self.adj[v].append(u) self.adj[u].append(v) n, m = map(int, input().split()) g = Graph(n) for i in range(m): v, u = map(int, input().split()) g.add(v - 1, u - 1) flag1 ...
PYTHON3
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#include <bits/stdc++.h> using namespace std; const int N = 200; vector<int> adj[N]; int mark[N]; void dfs(int v) { mark[v] = 1; for (auto u : adj[v]) if (!mark[u]) dfs(u); } int main() { int n, m; cin >> n >> m; for (int i = 0; i < m; i++) { int u, v; cin >> u >> v; u--; v--; adj[u].p...
CPP
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
import java.io.* ; import java.math.* ; public class Main { /** * @param args * @throws IOException * @throws NumberFormatException */ private static int cycle = 0 ; private static int n,m,value ; private static int[] mark ; private static int[][] a ; private static void DFS1( int ...
JAVA
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
__author__ = 'yaroslavnazarov' # -*- coding: utf-8 -*- def getLoop(arcs, path): loop = [] path_len = len(path) current_elem = path[path_len-1] if path_len > 1: previous_elem = path[path_len-2] else: previous_elem = None for i in range(0,len(arcs)): if arcs[i][0] == cu...
PYTHON
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
from sys import stdin,stdout,setrecursionlimit setrecursionlimit(10**4) from collections import defaultdict nmbr = lambda: int(stdin.readline()) lst = lambda: list(map(int,stdin.readline().split())) def dfs(src,par): global remu,remv vis[src]=1 for neigh in g[src]: if vis[neigh] or neigh==par:contin...
PYTHON3
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#!/usr/bin/python3 # B - Cthulhu import sys def dfs(curvertex): visited[curvertex] = 1 for v in adjlist[curvertex]: if visited[v] == 0: dfs(v) n, m = [int(x) for x in input().split()] if n != m: print("NO") sys.exit() adjlist = [[] for x in range(n)] visited = [0]*n for i in range(m): x, y = [int(x) for x...
PYTHON3
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#include <bits/stdc++.h> #pragma GCC optimize("Ofast") #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native") using namespace std; const double PI = 3.141592653589793238463; const int INF = 0x3f3f3f3f; const int INFS = 1000000000; const long long LLINF = 9223372036854775807; const int M = 1000000...
CPP
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#include <bits/stdc++.h> using namespace std; vector<int> adj[105]; bool visited[105]; int df[1005]; int ans = 0, k = 0; void dfs(int i, int parent) { visited[i] = true; for (int j = 0; j < adj[i].size(); j++) { if (!visited[adj[i][j]]) dfs(adj[i][j], i); } } int main() { int n, m; cin >> n >> m; for (i...
CPP
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#include <bits/stdc++.h> using namespace std; class TaskC { public: int n, m; vector<vector<int> > v; vector<int> vis; void dfs(int u) { if (vis[u] == 1) return; vis[u] = 1; for (int i = 0; i < v[u].size(); ++i) dfs(v[u][i]); } void solve(istream& in, ostream& out) { string ans[] = {"NO", "...
CPP
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#include <bits/stdc++.h> using namespace std; const int N = 110; bool i[N]; vector<int> a[N]; int bi; void t(int s) { bi++; i[s] = 1; for (int e : a[s]) { if (!i[e]) t(e); } } int main() { int i, j, k, n, m, u, v; cin >> n >> m; for (i = 0; i < m; i++) { cin >> u >> v; a[u].push_back(v); a...
CPP
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
import java.util.ArrayList; import java.util.Scanner; import javax.xml.soap.SAAJResult; public class Cthulhu { static ArrayList<Integer>[]graph; static boolean visited[]; public static void dfs(int node) { visited[node]=true; for (int i = 0; i < graph[node].size(); i++) { ...
JAVA
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#include <bits/stdc++.h> using namespace std; int edge[105][105], k = 0, n, m; bool mark[105]; void dfs(int rt) { if (mark[rt]) return; mark[rt] = 1; k++; for (int i = 1; i <= n; ++i) if (edge[rt][i] && !mark[i]) dfs(i); } int main() { scanf("%d%d", &n, &m); memset(edge, 0, sizeof(edge)); for (int i =...
CPP
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
import java.util.Scanner; public class Cthulhu { public static void main(String[] args) { Scanner sc = new Scanner(System.in); // int t = sc.nextInt(); // for(int tc=0;tc<t;tc++) // { int n = sc.nextInt(); int m = sc.nextInt(); int a[][] = new int[n][n]; for(int i=0;i<m;i++) { int from = s...
JAVA
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#include <bits/stdc++.h> using namespace std; const long long int mod = 1000 * 1000 * 1000 + 7; const double PI = 3.14159265358979323846264; const pair<long long int, long long int> steps[] = { {1, 0}, {0, 1}, {-1, 0}, {0, -1}, {1, -1}, {1, 1}, {-1, -1}, {-1, 1}}; template <typename... T> void read(T&... args) { ...
CPP
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#include <bits/stdc++.h> using namespace std; int f[1005]; int Find(int x) { return f[x] == x ? x : f[x] = Find(f[x]); } int main() { int n, m; scanf("%d", &n), scanf("%d", &m); for (int i = 1; i <= n; i++) f[i] = i; int num = 0; for (int i = 1; i <= m; i++) { int x, y; scanf("%d", &x), scanf("%d", &y...
CPP
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
import java.io.*; import java.math.*; import java.util.*; public class B80_div2 { static boolean test = false; private void solve() throws Throwable, IOException { int n = iread(), m = iread(); boolean[][] edge = new boolean[n][n]; for (int i = 0; i < m; i++) { int a = iread()- 1, b = iread()- 1; ed...
JAVA
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#include <bits/stdc++.h> int N, M, cnt; bool w[101][101], v[101]; void dfs(int n) { int i; v[n] = 1; cnt++; for (i = 1; i <= N; i++) if (w[n][i] && !v[i]) dfs(i); } int main() { int i, j, k; scanf("%d%d", &N, &M); if (N != M) { puts("NO"); return 0; } for (i = 1; i <= M; i++) { scanf("...
CPP
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
def dfs(v): global g, marked marked[v] = True for nv in g[v]: if not marked[nv]: dfs(nv) n, m = map(int, input().split()) if (n != m): print("NO") else: g = [[] for _ in range(n)] for i in range(m): a, b = map(int, input().split()) g[a-1].append(b-1) g...
PYTHON3
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.*; public class Cthulhu { public static void main(String[] args) throws NumberFormatException, IOException { // TODO Auto-generated method stub BufferedReader r=new BufferedReader(new InputStreamReader(S...
JAVA
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#include <bits/stdc++.h> using namespace std; int i, j, k, n, m, r, flag; int f[110], g[110], h[110]; vector<int> a[110], gen; void dfs(int x, int y) { if (flag) return; int i; f[x] = 1; g[++r] = x; for (i = 0; i < a[x].size(); i++) { int A = a[x][i]; if (A == y) continue; if (f[A]) { for (;...
CPP
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
import java.util.Scanner; public class Main { static int garb[], unioned[]; public static void main(String [] args) { Scanner scan = new Scanner(System.in); int n = scan.nextInt(), m = scan.nextInt(); DSU dsu = new DSU(n); garb = new int[n]; unioned = new int[n]; String out = "NO"; for(int i = 0; i...
JAVA
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
def find(node): while p[node] != node: p[node] = p[p[node]] node = p[node] return node def union(n1,n2): a1 = find(n1) a2 = find(n2) if a1 != a2: p[a1] = a2 n,m = map(int,input().split()) p = [i for i in range(n+1)] cnt = 0 for _ in range(m): a,b = map(int,input().split()) ...
PYTHON3
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
parent = dict() ranks = dict() def make_set(N): global parent, ranks parent = [i for i in range(N + 5)] ranks = [0 for i in range(N + 5)] def find_set(u): if parent[u] != u: parent[u] = find_set(parent[u]) return parent[u] def union_set(u, v): up = find_set(u) vp = find_set(v) ...
PYTHON3
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
import java.util.*; import java.io.*; public class Main { static class Scan { private byte[] buf=new byte[1024]; private int index; private InputStream in; private int total; public Scan() { in=System.in; } public int scan()throws IOExcepti...
JAVA
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
n, m = map(int, input().split()) t = [[] for i in range(n + 1)] for i in range(m): a, b = map(int, input().split()) t[a].append(b) t[b].append(a) q, p, s = [0] * (n + 1), [0] * (n + 1), 0 def dfs(a): global q, p, s, t q[a] = 1 for b in t[a]: if q[b] == 1 and p[a] != b: s += 1 ...
PYTHON3
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
import java.util.*; import java.io.*; import java.math.*; import static java.lang.Math.*; import static java.math.BigInteger.*; public class Task { public static void main(String[] args) throws IOException { //br = new BufferedReader(new FileReader("input.txt")); br = new BufferedReader(new InputStreamReader(Syst...
JAVA
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#include <bits/stdc++.h> const int maxn = 100; int dsu[maxn], rank[maxn]; int get(int x) { return x == dsu[x] ? x : dsu[x] = get(dsu[x]); } void unite(int x, int y) { x = get(x), y = get(y); if (rank[x] == rank[y]) rank[x]++; if (rank[x] > rank[y]) dsu[y] = x; else dsu[x] = y; } int main() { int n, m,...
CPP
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
import java.lang.reflect.Array; import java.util.Scanner; import java.io.*; import java.util.*; import java.math.*; import java.lang.*; import static java.lang.Math.*; public class main implements Runnable { static ArrayList<Integer> adj[]; static void Check2(int n) { adj = new ArrayList[n + 1]; ...
JAVA
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#include <bits/stdc++.h> using namespace std; vector<vector<int>> path(1000); bool visited[1000]; void dfs(int nod) { visited[nod] = true; for (int i = 0; i < path[nod].size(); i++) { if (!visited[path[nod][i]]) dfs(path[nod][i]); } } int main(int argc, const char* argv[]) { int n, m, cont = 0; cin >> n >...
CPP
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
def BFS(vertices,aristas,s): U=[s] #nodos visitados F=[] #aristas de solución Aux=[] for e in aristas: #agregamos aristas incidentes de s if e[0]==s: Aux=Aux+[e] elif e[1]==s: Aux=Aux+[e] #print("Aux es ",Aux) while Aux!=[]: u=Aux.pop(0) #extr...
PYTHON3
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#include <bits/stdc++.h> using namespace std; bool go[105]; int cnt; int n, m; vector<int> road[105]; void rf(int x, int p, int dep) { if (go[x]) { cnt++; return; } go[x] = 1; for (int i = 0; i < road[x].size(); i++) { if (road[x][i] != p) rf(road[x][i], x, dep + 1); } } int main() { cin >> n >>...
CPP
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#include <bits/stdc++.h> using namespace std; vector<long long> v, si; int roo(int i) { return i == v[i] ? i : v[i] = roo(v[i]); } void w_union(int _a, int _b) { int a = roo(_a); int b = roo(_b); if (a == b) return; if (si[a] < si[b]) { v[a] = v[b]; si[b] += si[a]; } else { v[b] = v[a]; si[a] ...
CPP
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
import java.util.Scanner; public class Solution { static int arr[][]; static int visited[]; static int vertices; static int edges; static int flag =0; public static void dfs(int x,int parent) { if(visited[x]==1) { flag=1; return; } visited[x]=1; for(int i=0;i<=vertices;i++) { if(arr[...
JAVA
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
import java.util.Scanner; public class Task80C { public static void dfs(int v, boolean[][] match, boolean[] visited) { visited[v] = true; for (int i = 0; i < visited.length; i++) { if (match[v][i] && !visited[i]) { dfs(i, match, visited); } } } ...
JAVA
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#include <bits/stdc++.h> using namespace std; const int N = 1e5; vector<int> vc[N]; int a, b; int mark[N]; void DFS(int x) { mark[x] = 1; for (int i = 0; i < vc[x].size(); i++) if (!mark[vc[x][i]]) DFS(vc[x][i]); } int main(int argc, const char* argv[]) { ios_base::sync_with_stdio(false); int n, m; cin >>...
CPP
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
import java.util.Scanner; public class Summer { public static class node { public int parent; public int me; public node(int x, int y) { parent = x; me = y; } } public static node[] A; public static int cycle = 0; public static void main...
JAVA
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
import java.io.*; import java.util.LinkedList; import java.util.Queue; import java.awt.*; public class round103B { static int N; static boolean [][] graph; static boolean [] vis; public static int countCycles(){ vis = new boolean [N]; Queue<Point> dfs = new LinkedList<Point>(); ...
JAVA
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
N, M = map(int, input().split()) g = [[] for i in range(N)] for i in range(M): a, b = map(int, input().split()) g[a-1].append(b-1) g[b-1].append(a-1) visited = [0] * N def dfs(n): global visn visited[n] = 1 for i in g[n]: if not visited[i]: dfs(i) if N != M: print("NO...
PYTHON3
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#include <bits/stdc++.h> int arr[1000][1000] = {0}; int visited[1000] = {0}; int last[100] = {0}; int dfs(int i) { int j; if (visited[i] == 1) { for (j = 0; j < last[i]; j++) { if (visited[arr[i][j]] == 0) { visited[arr[i][j]] = 1; dfs(arr[i][j]); } } } else { return 0; }...
CPP
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
def find_parent(i): if parent[i] != parent[parent[i]]: parent[i] = find_parent(parent[i]) return parent[i] n, m = map(int, raw_input().split()) parent = range(n) size = [1] * n group_count = n loop = 0 for i in xrange(m): a, b = map(lambda x: int(x) - 1, raw_input().split()) parent_a = find_...
PYTHON
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#include <bits/stdc++.h> using namespace std; const int MAXN = 110; vector<int> g[MAXN]; int inCycle; int cycleHead; vector<int> cycle; bool isIn[MAXN]; bool mark[MAXN]; int nodeCount; void dfs0(int u) { mark[u] = true; nodeCount++; for (int i = 0; i < g[u].size(); i++) { int v = g[u][i]; if (!mark[v]) df...
CPP
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#include <bits/stdc++.h> using namespace std; int n, m; vector<vector<int> > v; bitset<103> visited; void dfs(int x) { visited[x] = 1; for (int u : v[x]) if (!visited[u]) dfs(u); } int main() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); cin >> n >> m; if (n != m) { cout << "NO"; re...
CPP
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#include <bits/stdc++.h> using namespace std; int mark[10000]; vector<int> adj[10000]; void dfs(int pos) { if (mark[pos] == 1) return; else { mark[pos] = 1; for (int i = 0; i < adj[pos].size(); i++) dfs(adj[pos][i]); } } int main() { memset(mark, -1, sizeof mark); int m, n; cin >> m >> n; for ...
CPP
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
import java.io.*; import java.util.*; public class Main2 { static class Main { Main() {} public Scanner sc; static final int MAX_N = 101; int[] parent = new int[MAX_N]; int[] rank = new int[MAX_N]; void uf_init(int n) { for (int i = 0; ...
JAVA
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
/* The main idea is that graph should be connected and should contain only one cycle. if it contains one cycle then m=n */ import java.util.*; import java.io.*; public class pt{ static void dfs(LinkedList<Integer> l[],int s,boolean v[]){ v[s]=true; for(I...
JAVA
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
import java.io.*; import java.util.*; public class Template implements Runnable { int[][] g; int cycle = 0; int[] p; private void dfs(int s, int a) { for (int i = 0; i < g[a].length; i++) { if (g[a][i] == 1 && s != i) { if (p[i] == 0) { p[i] = ...
JAVA
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
/* / フフ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ム / )\⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ Y (⠀⠀| ( ͡° ͜ʖ ͡°)⠀⌒(⠀ ノ (⠀ ノ⌒ Y ⌒ヽ-く __/ | _⠀。ノ| ノ。 |/ (⠀ー '_人`ー ノ ⠀|\  ̄ _人'彡ノ ⠀ )\⠀⠀ 。⠀⠀ / ⠀⠀(\⠀ #⠀ / ⠀/⠀⠀⠀/ὣ====================D- /⠀⠀⠀/⠀ \ \⠀⠀\ ( (⠀)⠀⠀⠀⠀ ) ).⠀) (⠀⠀)⠀⠀⠀⠀⠀( | / |⠀ /⠀⠀⠀⠀⠀⠀ | / [_] ⠀⠀⠀⠀⠀[___] */ // Main Code at th...
JAVA
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
inp = input().split() n = int(inp[0]) m = int(inp[1]) def dfs(x): visited.add(x) for y in e[x]: if not y in visited: dfs(y) if n >= 3 and n == m: visited = set() e = [[] for i in range(n + 1)] for i in range(m): x, y = map(int, input().split()) ...
PYTHON3
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
/** * Created by IntelliJ IDEA. * User: Taras_Brzezinsky * Date: 8/7/11 * Time: 2:21 PM * To change this template use File | Settings | File Templates. */ import java.io.BufferedReader; import java.io.InputStreamReader; import java.io.PrintWriter; import java.io.FileRe...
JAVA
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
import java.util.Scanner; public class Main { public static void main(String[] args) { int n , m; Scanner sc = new Scanner(System.in); n = sc.nextInt(); m = sc.nextInt(); DisjointSet ds = new DisjointSet(n); ds.initialize(); for(int i = 0; i < m; i++){ int start = sc.nextInt(); int end = ...
JAVA
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#include <bits/stdc++.h> using namespace std; int n, m; vector<int> adj[107]; bool mark[107]; int main() { ios::sync_with_stdio(0); cin.tie(0); cin >> n >> m; for (int i = 1; i <= m; ++i) { int u, v; cin >> u >> v; adj[u].push_back(v); adj[v].push_back(u); } int nLoop = 0; queue<int> q; ...
CPP
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#include <bits/stdc++.h> using namespace std; const int INF = 1 << 28; int N; vector<vector<int> > g; bool used[100][100]; bool visited[100]; bool check(const vector<int> &route) { memset(used, false, sizeof(used)); memset(visited, false, sizeof(visited)); for (int i = 0; i < (int)(route.size()); i++) { int j...
CPP
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
#include <bits/stdc++.h> using namespace std; int n; vector<int> adj[100010]; bool visited[100010]; void visit(int u) { visited[u] = true; for (int i = 0; i < adj[u].size(); i++) if (!visited[adj[u][i]]) visit(adj[u][i]); } int main() { int m, u, v; scanf("%d %d", &n, &m); for (int i = 0; i < m; i++) { ...
CPP
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
import java.util.*; import java.io.*; public class Main implements Runnable { boolean[][] edges; int n; boolean[] was; public void solve() throws IOException { n = nextInt(); int m = nextInt(); if (m != n) {//absence of simple cycle.... System.out.println("NO"); ...
JAVA
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
def findSet(u): while u != parent[u]: u = parent[u] return u def unionSet(u, v): up = findSet(u) vp = findSet(v) parent[up] = vp if __name__ == '__main__': n, m = map(int, input().split()) if n != m: print('NO') else: parent = [i for i in range(n + 1)] f...
PYTHON3
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
import java.util.*; import java.math.*; import java.io.*; public class Codeforcescodes { /** * @param args the command line arguments */ static int mod = 1000 * 1000 * 1000 + 7; static boolean[] mark = new boolean[10005]; static ArrayList<Integer> g[]; static void dfs(int node ) { ...
JAVA
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
import java.util.*; public class solution{ static Map<Integer,List<Integer>> graph=new HashMap<>(); public static void main(String[] args){ Scanner sc=new Scanner(System.in); int n=sc.nextInt(); int e=sc.nextInt(); if(n!=e){ System.out.println("NO"); } ...
JAVA
103_B. Cthulhu
...Once upon a time a man came to the sea. The sea was stormy and dark. The man started to call for the little mermaid to appear but alas, he only woke up Cthulhu... Whereas on the other end of the world Pentagon is actively collecting information trying to predict the monster's behavior and preparing the secret super...
2
8
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.PrintWriter; import java.util.*; public class Cthulhu { private static void dfs(boolean vis[], Vector<Integer>[] graph, int index) { vis[index] = true; if (graph[index] != null) for (int i = 0; i < graph...
JAVA