//#pragma GCC optimize("Ofast,unroll-loops")
#include <bits/stdc++.h>
using namespace std;
typedef long long llo;
#define mp make_pair
#define pb push_back
#define a first
#define b second
#define endl '\n'
vector<int> adj[200001];
int dp[200001];
int co[200001];
int main(){
ios_base::sync_with_stdio(false);
cin.tie(NULL);
int n,m;
cin>>n>>m;
for(int i=0;i<m;i++){
int aa,bb;
cin>>aa>>bb;
aa--;
bb--;
adj[aa].pb(bb);
adj[bb].pb(aa);
}
if(m!=n-1){
cout<<"NO"<<endl;
}
else{
cout<<"YES"<<endl;
if(n==1){
cout<<1<<endl;
cout<<1<<endl;
return 0;
}
cout<<n<<endl;
for(int i=0;i<n;i++){
if(i==n-1){
cout<<i<<" ";
continue;
}
cout<<i+1<<" ";
}
cout<<endl;
}
/* if(n==1){
cout<<"YES"<<endl;
cout<<"1"<<endl;
cout<<"1"<<endl;
}
else if(n==2){
cout<<"YES"<<endl;
cout<<"2"<<endl;
cout<<"1 1"<<endl;
}
else if(n==3){
cout<<"YES"<<endl;
cout<<"2"<<endl;
cout<<"2 2"<<endl;
}
else{
cout<<"NO"<<endl;
}
*/
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
4940 KB |
Output is correct |
2 |
Correct |
3 ms |
4940 KB |
Output is correct |
3 |
Partially correct |
3 ms |
4940 KB |
Failed to provide a successful strategy. |
4 |
Partially correct |
3 ms |
4940 KB |
Failed to provide a successful strategy. |
5 |
Partially correct |
3 ms |
4940 KB |
Failed to provide a successful strategy. |
6 |
Partially correct |
3 ms |
4940 KB |
Failed to provide a successful strategy. |
7 |
Correct |
4 ms |
4940 KB |
Output is correct |
8 |
Partially correct |
3 ms |
4940 KB |
Failed to provide a successful strategy. |
9 |
Incorrect |
3 ms |
5012 KB |
Output isn't correct |
10 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
4940 KB |
Output is correct |
2 |
Correct |
4 ms |
4940 KB |
Output is correct |
3 |
Partially correct |
3 ms |
4940 KB |
Provide a successful but not optimal strategy. |
4 |
Partially correct |
3 ms |
4940 KB |
Failed to provide a successful strategy. |
5 |
Partially correct |
3 ms |
4940 KB |
Failed to provide a successful strategy. |
6 |
Partially correct |
3 ms |
4940 KB |
Failed to provide a successful strategy. |
7 |
Partially correct |
3 ms |
4940 KB |
Failed to provide a successful strategy. |
8 |
Partially correct |
3 ms |
4940 KB |
Failed to provide a successful strategy. |
9 |
Partially correct |
3 ms |
4940 KB |
Failed to provide a successful strategy. |
10 |
Partially correct |
3 ms |
4940 KB |
Failed to provide a successful strategy. |
11 |
Partially correct |
3 ms |
4940 KB |
Failed to provide a successful strategy. |
12 |
Partially correct |
4 ms |
4940 KB |
Failed to provide a successful strategy. |
13 |
Partially correct |
4 ms |
4940 KB |
Failed to provide a successful strategy. |
14 |
Partially correct |
5 ms |
4940 KB |
Failed to provide a successful strategy. |
15 |
Partially correct |
3 ms |
4940 KB |
Failed to provide a successful strategy. |
16 |
Partially correct |
4 ms |
4940 KB |
Failed to provide a successful strategy. |
17 |
Partially correct |
3 ms |
4940 KB |
Failed to provide a successful strategy. |
18 |
Partially correct |
4 ms |
4940 KB |
Failed to provide a successful strategy. |
19 |
Partially correct |
4 ms |
4940 KB |
Failed to provide a successful strategy. |
20 |
Partially correct |
4 ms |
4940 KB |
Failed to provide a successful strategy. |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
4940 KB |
Output is correct |
2 |
Correct |
3 ms |
4940 KB |
Output is correct |
3 |
Partially correct |
3 ms |
4940 KB |
Failed to provide a successful strategy. |
4 |
Partially correct |
3 ms |
4940 KB |
Failed to provide a successful strategy. |
5 |
Partially correct |
3 ms |
4940 KB |
Failed to provide a successful strategy. |
6 |
Partially correct |
3 ms |
4940 KB |
Failed to provide a successful strategy. |
7 |
Correct |
4 ms |
4940 KB |
Output is correct |
8 |
Partially correct |
3 ms |
4940 KB |
Failed to provide a successful strategy. |
9 |
Incorrect |
3 ms |
5012 KB |
Output isn't correct |
10 |
Halted |
0 ms |
0 KB |
- |