#include<iostream>
#include<vector>
using namespace std;
vector<vector<int>> graph;
int main(){
int n,m;
cin>>n>>m;
int a,b;
graph.resize(n+1);
vector<int> deg(n+1);
int maxdeg=0;
for(int i=0;i<m;i++){
cin>>a>>b;
deg[a]++;
deg[b]++;
graph[a].push_back(b);
graph[b].push_back(a);
}
for(int i=1;i<=n;i++) if(maxdeg<deg[i]) maxdeg=deg[i];
if(n<=m){
cout<<"NO\n";
}
else if(n==3||n==2){
cout<<"YES\n2\n2 2";
}
else if(n==1){
cout<<"YES\n1\n1";
}
else if(maxdeg==2||maxdeg==m){
cout<<"YES\n";
cout<<(n-2)*2<<"\n";
for(int i=2;i<n;i++) cout<<i<<" ";
for(int i=n-1;i>=2;i--) cout<<i<<" ";
}
else cout<<"NO\n";
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Partially correct |
0 ms |
212 KB |
Failed to provide a successful strategy. |
6 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
7 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
0 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
340 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
340 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
1 ms |
340 KB |
Output is correct |
19 |
Correct |
1 ms |
340 KB |
Output is correct |
20 |
Correct |
1 ms |
340 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Partially correct |
0 ms |
212 KB |
Failed to provide a successful strategy. |
6 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
7 |
Halted |
0 ms |
0 KB |
- |