제출 #274226

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
274226	2020-08-19 10:07:02	LifeHappen__	동기화 (JOI13_synchronization)	C++14	100 / 100	437 ms	38820 KiB

synchronization

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#include<bits/stdc++.h>
using namespace std;
#define int long long
#define forinc(a,b,c) for(int a=b, _c=c; a<=_c; ++a)
#define fordec(a,b,c) for(int a=b, _c=c; a>=_c; --a)
#define forv(v,a) for(auto &v:a)
#define ii pair<int,int>
#define fi first
#define se second
#define pb push_back
#define all(a) begin(a),end(a)
const int N=2e5+5;
int n,m,q,st[N],en[N],id;
vector<int> ad[N];
ii edge[N];
int pd[N][21],it[N],act[N],a[N],last[N];
void dfs(int u,int par){
    forinc(i,1,20) pd[u][i]=pd[pd[u][i-1]][i-1];
    st[u]=++id;
    a[u]=1;
    forv(v,ad[u]) if(v!=par){
        pd[v][0]=u;
        dfs(v,u);
    }
    en[u]=id;
}
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 10 / 10
• Subtask 4: 20 / 20
• Subtask 5: 40 / 40