#include <bits/stdc++.h>
#pragma GCC target ("sse4.2")
#pragma GCC optimize("Ofast")
//#pragma GCC target("avx,avx2,fma")
#pragma GCC optimize ("unroll-loops")
using namespace std;
typedef long long ll;
typedef long double ld;
#define pb push_back
#define fastio ios_base::sync_with_stdio(0);cin.tie(nullptr);cout.tie(nullptr);
#define file ifstream cin("shufflegold.in"); ofstream cout("shufflegold.out")
#define X first
#define Y second
//#define endl '\n'
typedef pair<int, int> pii;
//#define int long long
const int N = 1000+ 20, MOD = 1e6+7;
int n, m;
vector<int>adj[N];
bool mat[N][N], mark[N];
int dis[N], par[N];
vector<pii>edg;
void bfs(int root){
for(int i = 0; i < n; i ++)mark[i] = 0, dis[i] = 0, par[i] = -1;
queue<int>q;
dis[root] = 0, mark[root] = 1;
q.push(root);
while(!q.empty()){
int v = q.front();
q.pop();//cout << "IN " << v << endl;
for(int u = 0; u < n; u ++)if(mat[u][v]){
if(!mark[u]){
// cout << "ADD " << u << endl;
mark[u] = 1;
par[u] = v;
dis[u] = dis[v] + 1;
q.push(u);
}
}
}
return;
}
int32_t main(){
fastio;
//auto t = clock();
cin >> n >> m;
for(int i = 0; i < m; i ++){
int u, v;
cin >> u >> v;
v --; u --;
mat[u][v]= mat[v][u] = 1;
edg.pb({v, u});
}
for(int i = 0; i < m; i ++){
int u = edg[i].X, v = edg[i].Y;
mat[u][v] = mat[v][u] = 0;
// cout << "CHECK " << u+1 << ' ' << v+1 << endl;
bfs(u);
if(dis[v] > 2){
int cur = v;
while(cur != -1){
cout << cur+1 << ' ';
cur = par[cur];
}
return 0;
}
mat[u][v] = mat[v][u] = 1;
}
cout << "no";
//cout << clock() - t << "ms" << endl;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
0 ms |
332 KB |
Output is correct |
5 |
Correct |
0 ms |
332 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
332 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
332 KB |
Expected integer, but "no" found |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
332 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
23 ms |
460 KB |
Expected integer, but "no" found |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
552 ms |
716 KB |
Output is correct |
2 |
Correct |
253 ms |
716 KB |
Output is correct |
3 |
Correct |
381 ms |
716 KB |
Output is correct |
4 |
Execution timed out |
1080 ms |
716 KB |
Time limit exceeded |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
510 ms |
716 KB |
Expected integer, but "no" found |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
1086 ms |
2256 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
1068 ms |
1868 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
1090 ms |
2528 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |