Submission #994305

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
994305	2024-06-07 10:32:06	vjudge1	Jail (JOI22_jail)	C++17	72 / 100	4771 ms	1048576 KiB

jail

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#include <bits/stdc++.h>
using namespace std;
const int maxn = 120'001, mbit = 18;
int n, m;
int dth[maxn];
int S[maxn], T[maxn];
vector <vector <int> > G;
vector <int> Si, Ti;
vector <int> w;
vector <vector <int> > g;
vector <int> stp;
void dfs_pa(int u = 1){
    for(auto v : G[u]){
        if(v != stp[u]){
            stp[v] = u;
            dth[v] = dth[u] + 1;
            dfs_pa(v);
        }
    }
}
bool dfs_loop(int u){
    if(w[u] == 1) return 1;
    if(w[u] == 2) return 0;
    w[u] = 1;
    for(auto v : g[u]){
        if(dfs_loop(v)) return 1;
 
 
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• Subtask 7: 0 / 23