Submission #367092

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
367092	2021-02-16 08:53:40	duchung	Pipes (CEOI15_pipes)	C++17	10 / 100	2352 ms	65540 KiB

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#include <bits/stdc++.h>
using namespace std;
const int N = 1e5 + 5;
int n , m;
vector<int> edge[N];
int low[N] , tin[N];
bool visited[N];
int timer = 0;
void dfs(int u , int p)
{
    low[u] = tin[u] = ++timer;
    visited[u] = true;
    for (auto v : edge[u])
    {
        if (p == v) continue;
        if (visited[v])
        {
            low[u] = min(low[u] , tin[v]);
        }
        else
        {
            dfs(v , u);
            low[u] = min(low[u] , low[v]);
            if (low[v] > tin[u])
 
 
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