제출 #954033

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
954033	2024-03-27 06:35:36	owoovo	Tourism (JOI23_tourism)	C++17	24 / 100	632 ms	37340 KiB

tourism

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#include<bits/stdc++.h>
#define ll long long
#define MP make_pair
#define F first 
#define S second 
using namespace std;
int f[100010],si[100010],hs[100010],top[100010],dep[100010],in[100010],cnt;
int n,m,q;
vector<int> e[100010];
int dfs1(int now,int last){
    dep[now]=dep[last]+1;
    f[now]=last;
    si[now]=1;
    for(auto x:e[now]){
        if(x==last)continue;
        int siz=dfs1(x,now);
        if(siz>si[hs[now]]){
            hs[now]=x;
        }
        si[now]+=siz;
    }
    return si[now];
}
void dfs2(int now,int tp){
    in[now]=++cnt;
    top[now]=tp;
    if(hs[now]!=0)dfs2(hs[now],tp);
    for(auto x:e[now]){
        if(x==f[now]||x==hs[now])continue;
        dfs2(x,x);
 
 
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• Subtask 4: 0 / 18
• Subtask 5: 24 / 24
• Subtask 6: 0 / 41