| # | 제출 시각 | 아이디 | 문제 | 언어 | 결과 | 실행 시간 | 메모리 |
|---|---|---|---|---|---|---|---|
| 528202 | 2022-02-19T16:55:15 Z | Rafi22 | Newspapers (CEOI21_newspapers) | C++14 | 11 ms | 460 KB |
#include <bits/stdc++.h>
using namespace std;
#define endl '\n'
#define st first
#define nd second
#define pb push_back
#define sz(x) (int)(x).size()
#define all(x) (x).begin(), (x).end()
#define ll long long
ll mod=1000000007;
int inf=1000000007;
ll infl=1000000000000000007;
vector<int>G[1007];
int s[1007];
vector<int>res;
bool ok;
void dfs(int v,int o)
{
bool was=0;
s[v]=1;
for(auto u:G[v])
{
if(u==o) continue;
dfs(u,v);
s[v]+=s[u];
if(s[u]>2)
{
if(was) ok=0;
was=1;
}
}
}
int main()
{
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
int n,m,a,b;
cin>>n>>m;
if(m!=n-1)
{
cout<<"NO"<<endl;
return 0;
}
for(int i=0;i<n-1;i++)
{
cin>>a>>b;
G[a].pb(b);
G[b].pb(a);
}
vector<int>ans;
bool is=0;
for(int i=1;i<=n;i++)
{
ok=1;
res.clear();
dfs(i,0);
if(ok)
{
is=1;
}
}
if(!is) cout<<"NO"<<endl;
else
{
cout<<"YES"<<endl;
cout<<1<<endl<<1<<endl;
//for(auto x:ans) cout<<1<<" ";
}
return 0;
}
| # | 결과 | 실행 시간 | 메모리 | Grader output |
|---|---|---|---|---|
| 1 | Correct | 0 ms | 332 KB | Output is correct |
| 2 | Partially correct | 0 ms | 332 KB | Failed to provide a successful strategy. |
| 3 | Partially correct | 0 ms | 332 KB | Failed to provide a successful strategy. |
| 4 | Partially correct | 0 ms | 332 KB | Failed to provide a successful strategy. |
| 5 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 6 | Partially correct | 0 ms | 332 KB | Failed to provide a successful strategy. |
| 7 | Correct | 1 ms | 332 KB | Output is correct |
| 8 | Partially correct | 0 ms | 332 KB | Failed to provide a successful strategy. |
| 9 | Correct | 1 ms | 276 KB | Output is correct |
| 10 | Partially correct | 1 ms | 340 KB | Failed to provide a successful strategy. |
| 11 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 12 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 13 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 14 | Partially correct | 0 ms | 332 KB | Failed to provide a successful strategy. |
| 15 | Partially correct | 0 ms | 332 KB | Failed to provide a successful strategy. |
| 16 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 17 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 18 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 19 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 20 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 21 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 22 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 23 | Partially correct | 0 ms | 332 KB | Failed to provide a successful strategy. |
| 24 | Partially correct | 0 ms | 332 KB | Failed to provide a successful strategy. |
| 25 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 26 | Partially correct | 1 ms | 340 KB | Failed to provide a successful strategy. |
| 27 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 28 | Partially correct | 0 ms | 332 KB | Failed to provide a successful strategy. |
| 29 | Correct | 1 ms | 340 KB | Output is correct |
| 30 | Partially correct | 0 ms | 332 KB | Failed to provide a successful strategy. |
| 31 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 32 | Partially correct | 0 ms | 332 KB | Failed to provide a successful strategy. |
| 33 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 34 | Correct | 1 ms | 332 KB | Output is correct |
| 35 | Partially correct | 0 ms | 332 KB | Failed to provide a successful strategy. |
| 36 | Partially correct | 1 ms | 336 KB | Failed to provide a successful strategy. |
| 37 | Partially correct | 1 ms | 460 KB | Failed to provide a successful strategy. |
| 38 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 39 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 40 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 41 | Partially correct | 1 ms | 336 KB | Failed to provide a successful strategy. |
| 42 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 43 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 44 | Partially correct | 1 ms | 344 KB | Failed to provide a successful strategy. |
| 45 | Correct | 1 ms | 332 KB | Output is correct |
| 46 | Correct | 1 ms | 336 KB | Output is correct |
| 47 | Correct | 1 ms | 340 KB | Output is correct |
| 48 | Incorrect | 1 ms | 340 KB | Output isn't correct |
| 49 | Halted | 0 ms | 0 KB | - |
| # | 결과 | 실행 시간 | 메모리 | Grader output |
|---|---|---|---|---|
| 1 | Correct | 0 ms | 332 KB | Output is correct |
| 2 | Partially correct | 0 ms | 332 KB | Failed to provide a successful strategy. |
| 3 | Partially correct | 0 ms | 332 KB | Failed to provide a successful strategy. |
| 4 | Partially correct | 0 ms | 332 KB | Failed to provide a successful strategy. |
| 5 | Partially correct | 0 ms | 332 KB | Failed to provide a successful strategy. |
| 6 | Partially correct | 0 ms | 332 KB | Failed to provide a successful strategy. |
| 7 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 8 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 9 | Partially correct | 0 ms | 332 KB | Failed to provide a successful strategy. |
| 10 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 11 | Partially correct | 9 ms | 332 KB | Failed to provide a successful strategy. |
| 12 | Partially correct | 3 ms | 332 KB | Failed to provide a successful strategy. |
| 13 | Partially correct | 4 ms | 332 KB | Failed to provide a successful strategy. |
| 14 | Partially correct | 4 ms | 408 KB | Failed to provide a successful strategy. |
| 15 | Partially correct | 5 ms | 332 KB | Failed to provide a successful strategy. |
| 16 | Partially correct | 10 ms | 332 KB | Failed to provide a successful strategy. |
| 17 | Partially correct | 10 ms | 332 KB | Failed to provide a successful strategy. |
| 18 | Partially correct | 11 ms | 448 KB | Failed to provide a successful strategy. |
| 19 | Partially correct | 11 ms | 444 KB | Failed to provide a successful strategy. |
| 20 | Partially correct | 11 ms | 444 KB | Failed to provide a successful strategy. |
| # | 결과 | 실행 시간 | 메모리 | Grader output |
|---|---|---|---|---|
| 1 | Correct | 0 ms | 332 KB | Output is correct |
| 2 | Partially correct | 0 ms | 332 KB | Failed to provide a successful strategy. |
| 3 | Partially correct | 0 ms | 332 KB | Failed to provide a successful strategy. |
| 4 | Partially correct | 0 ms | 332 KB | Failed to provide a successful strategy. |
| 5 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 6 | Partially correct | 0 ms | 332 KB | Failed to provide a successful strategy. |
| 7 | Correct | 1 ms | 332 KB | Output is correct |
| 8 | Partially correct | 0 ms | 332 KB | Failed to provide a successful strategy. |
| 9 | Correct | 1 ms | 276 KB | Output is correct |
| 10 | Partially correct | 1 ms | 340 KB | Failed to provide a successful strategy. |
| 11 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 12 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 13 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 14 | Partially correct | 0 ms | 332 KB | Failed to provide a successful strategy. |
| 15 | Partially correct | 0 ms | 332 KB | Failed to provide a successful strategy. |
| 16 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 17 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 18 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 19 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 20 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 21 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 22 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 23 | Partially correct | 0 ms | 332 KB | Failed to provide a successful strategy. |
| 24 | Partially correct | 0 ms | 332 KB | Failed to provide a successful strategy. |
| 25 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 26 | Partially correct | 1 ms | 340 KB | Failed to provide a successful strategy. |
| 27 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 28 | Partially correct | 0 ms | 332 KB | Failed to provide a successful strategy. |
| 29 | Correct | 1 ms | 340 KB | Output is correct |
| 30 | Partially correct | 0 ms | 332 KB | Failed to provide a successful strategy. |
| 31 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 32 | Partially correct | 0 ms | 332 KB | Failed to provide a successful strategy. |
| 33 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 34 | Correct | 1 ms | 332 KB | Output is correct |
| 35 | Partially correct | 0 ms | 332 KB | Failed to provide a successful strategy. |
| 36 | Partially correct | 1 ms | 336 KB | Failed to provide a successful strategy. |
| 37 | Partially correct | 1 ms | 460 KB | Failed to provide a successful strategy. |
| 38 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 39 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 40 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 41 | Partially correct | 1 ms | 336 KB | Failed to provide a successful strategy. |
| 42 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 43 | Partially correct | 1 ms | 332 KB | Failed to provide a successful strategy. |
| 44 | Partially correct | 1 ms | 344 KB | Failed to provide a successful strategy. |
| 45 | Correct | 1 ms | 332 KB | Output is correct |
| 46 | Correct | 1 ms | 336 KB | Output is correct |
| 47 | Correct | 1 ms | 340 KB | Output is correct |
| 48 | Incorrect | 1 ms | 340 KB | Output isn't correct |
| 49 | Halted | 0 ms | 0 KB | - |