Submission #1168641

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1168641	2025-03-17 17:50:27	dombly	Pipes (CEOI15_pipes)	C++20	10 / 100	1073 ms	93108 KiB

pipes

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#include <bits/stdc++.h>
using namespace std;
const int N = 1e5 + 10;
bool was[N];
int in[N], timer = 0, low[N];
vector<int> g[N];
void Dfs(int x, int p) {
  was[x] = true;
  low[x] = in[x] = ++timer;
  for(int j : g[x]) {
    if(j != p) {
      if(was[j]) low[x] = min(low[x], in[j]);
      else {
        Dfs(j, x);
        low[x] = min(low[x], low[j]);
        if(in[x] < low[j]) cout << x << " " << j << "\n";
      }
    }
  }
}
signed main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  int n, m;
 
 
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