QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #380453 | #5307. Subgraph Isomorphism | kevinyang# | WA | 39ms | 3820kb | C++17 | 542b | 2024-04-07 04:12:26 | 2024-04-07 04:12:27 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
#define int long long
signed main(){
cin.tie(nullptr)->sync_with_stdio(false);
int t;
cin >> t;
while(t--){
int n,m;
cin >> n >> m;
vector<int>deg(n+1);
for(int i = 0; i<m; i++){
int x,y;
cin >> x >> y;
deg[x]++;
deg[y]++;
}
if(m==n-1){
cout << "YES\n";
continue;
}
int mx = 0;
for(int i = 1; i<=n; i++){
mx = max(mx,deg[i]);
}
if(mx==2 && m==n){
cout << "YES\n";
continue;
}
cout << "NO\n";
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3820kb
input:
4 7 6 1 2 2 3 3 4 4 5 5 6 3 7 3 3 1 2 2 3 3 1 5 5 1 2 2 3 3 4 4 1 1 5 1 0
output:
YES YES NO YES
result:
ok 4 token(s): yes count is 3, no count is 1
Test #2:
score: -100
Wrong Answer
time: 39ms
memory: 3556kb
input:
33192 2 1 1 2 3 2 1 3 2 3 3 3 1 2 1 3 2 3 4 3 1 4 2 4 3 4 4 3 1 3 1 4 2 4 4 4 1 3 1 4 2 4 3 4 4 4 1 3 1 4 2 3 2 4 4 5 1 3 1 4 2 3 2 4 3 4 4 6 1 2 1 3 1 4 2 3 2 4 3 4 5 4 1 5 2 5 3 5 4 5 5 4 1 4 1 5 2 5 3 5 5 5 1 4 1 5 2 5 3 5 4 5 5 5 1 4 1 5 2 4 3 5 4 5 5 5 1 4 1 5 2 4 2 5 3 5 5 6 1 4 1 5 2 4 2 5 3 ...
output:
YES YES YES YES YES NO YES NO NO YES YES NO NO NO NO NO NO YES NO NO NO NO YES NO NO NO NO NO NO NO YES YES NO YES YES NO NO NO NO NO NO NO NO NO YES NO NO NO YES NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO YES NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO N...
result:
wrong answer expected YES, found NO [39th token]