This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
const short N = 5000;
vector<pair<short,int>> g[N];
vector<short> tin(N), low(N);
void dfs(short v, short p, vector<bool>& vis, short& timer) {
vis[v] = true;
tin[v] = low[v] = timer++;
for (auto [to, check] : g[v]) {
if (check == p)
continue;
if(vis[to]){
low[v] = min(low[v], low[to]);
} else{
dfs(to, check, vis, timer);
low[v] = min(low[v], low[to]);
if (low[to] > tin[v])
cout << v << " " << to << "\n";
}
}
}
void solve(){
short n;
int m;
cin >> n >> m;
for(int i = 0; i < m; i++){
short a, b;
cin >> a >> b;
g[a].emplace_back(b, i);
g[b].emplace_back(a, i);
}
vector<bool> vis(n, false);
short timer = 0;
for(short i = 0; i < n; i++){
if(!vis[i]){
dfs(i, -1, vis, timer);
}
}
}
int main() {
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
cout.tie(nullptr);
int t = 1;
// cin >> t;
while(t--){
solve();
}
return 0;
}
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |