#include <bits/stdc++.h>
using namespace std;
#define ll long long
const int N = 1005;
vector<int> adj[N];
int col[N];
bool dfs(int i, int c) {
if (~col[i]) {
return col[i] == c;
}
col[i] = c;
bool ok = 1;
for (auto nxt : adj[i]) {
ok &= dfs(nxt, c ^ 1);
}
return ok;
}
int main() {
ios_base::sync_with_stdio(0), cin.tie(0);
memset(col, -1, sizeof col);
int n, m;
cin >> n >> m;
for (int i = 0, u, v; i < m; i++) {
cin >> u >> v;
adj[u].push_back(v);
adj[v].push_back(u);
}
cout << (dfs(1, 0)? "YES\n1\n1\n" : "NO\n1\n1\n");
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Partially correct |
0 ms |
348 KB |
Failed to provide a successful strategy. |
3 |
Partially correct |
1 ms |
348 KB |
Failed to provide a successful strategy. |
4 |
Partially correct |
0 ms |
348 KB |
Failed to provide a successful strategy. |
5 |
Partially correct |
0 ms |
348 KB |
Failed to provide a successful strategy. |
6 |
Partially correct |
1 ms |
480 KB |
Failed to provide a successful strategy. |
7 |
Incorrect |
0 ms |
348 KB |
Extra information in the output file |
8 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Partially correct |
0 ms |
348 KB |
Failed to provide a successful strategy. |
3 |
Partially correct |
1 ms |
348 KB |
Failed to provide a successful strategy. |
4 |
Partially correct |
1 ms |
348 KB |
Failed to provide a successful strategy. |
5 |
Partially correct |
0 ms |
344 KB |
Failed to provide a successful strategy. |
6 |
Partially correct |
0 ms |
348 KB |
Failed to provide a successful strategy. |
7 |
Partially correct |
0 ms |
348 KB |
Failed to provide a successful strategy. |
8 |
Partially correct |
0 ms |
348 KB |
Failed to provide a successful strategy. |
9 |
Partially correct |
0 ms |
348 KB |
Failed to provide a successful strategy. |
10 |
Partially correct |
1 ms |
348 KB |
Failed to provide a successful strategy. |
11 |
Partially correct |
1 ms |
348 KB |
Failed to provide a successful strategy. |
12 |
Partially correct |
1 ms |
516 KB |
Failed to provide a successful strategy. |
13 |
Partially correct |
1 ms |
356 KB |
Failed to provide a successful strategy. |
14 |
Partially correct |
1 ms |
600 KB |
Failed to provide a successful strategy. |
15 |
Partially correct |
1 ms |
344 KB |
Failed to provide a successful strategy. |
16 |
Partially correct |
1 ms |
348 KB |
Failed to provide a successful strategy. |
17 |
Partially correct |
1 ms |
348 KB |
Failed to provide a successful strategy. |
18 |
Partially correct |
1 ms |
344 KB |
Failed to provide a successful strategy. |
19 |
Partially correct |
0 ms |
348 KB |
Failed to provide a successful strategy. |
20 |
Partially correct |
1 ms |
344 KB |
Failed to provide a successful strategy. |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Partially correct |
0 ms |
348 KB |
Failed to provide a successful strategy. |
3 |
Partially correct |
1 ms |
348 KB |
Failed to provide a successful strategy. |
4 |
Partially correct |
0 ms |
348 KB |
Failed to provide a successful strategy. |
5 |
Partially correct |
0 ms |
348 KB |
Failed to provide a successful strategy. |
6 |
Partially correct |
1 ms |
480 KB |
Failed to provide a successful strategy. |
7 |
Incorrect |
0 ms |
348 KB |
Extra information in the output file |
8 |
Halted |
0 ms |
0 KB |
- |