제출 #1046654

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
1046654	2024-08-06 19:46:36	_8_8_	Jail (JOI22_jail)	C++17	100 / 100	1542 ms	401228 KiB

jail

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#include <bits/stdc++.h>
 
using namespace std;
    
typedef long long ll;
const int  N = 24e4 + 2, MOD = (int)1e9+7;
int n,x[N],y[N],m,it = 1,it1 = 1,s[N],f[N];
vector<int> g[N],G[N * 20];
int up[N][20],t[N][20],t1[N][20],tin[N],tout[N],timer = 0;
const int b = 18;
void dfs(int v,int pr) {
    tin[v] = ++timer;
    up[v][0] = pr;
    if(!x[v]) {
        t[v][0] = ++it;
    } else {
        t[v][0] = x[v];
    }
    if(!y[v]) {
        t1[v][0] = ++it;
    } else {
        t1[v][0] = y[v];
    }
    for(int i = 1;i <= b;i++) {
        up[v][i] = up[up[v][i-1]][i-1];
        t[v][i] = ++it;
        t1[v][i] = ++it;
        // cout << t[v][i] << ' ' << t[v][i - 1] << "\n" ;
 
 
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