제출 #987617

#제출 시각UTC-0아이디문제언어결과실행 시간메모리
9876172024-05-23 07:28:57nihonNetwork (BOI15_net)C++14
0 / 100
4 ms14940 KiB
#include <bits/stdc++.h>
#define N 500005
using namespace std;
int n,m,i,j,a,b,t,x,ok,l[N],f[N];
bool r[N];
vector<int> v[N];
vector<pair<int,int>> sol;
int main()
{
cin>>n;
for(i=1;i<n;++i)
{
cin>>a>>b;
v[a].push_back(b);
v[b].push_back(a);
}
for(i=2;i<=n;++i)
{
if(v[i].size()==1)
{
++t;
f[t]=i;
l[i]=t;
}
}
m=v[1].size();
for(i=0;i<m;++i)
{
x=v[1][i];
r[x]=1;
 
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