code. compile. run. debug. share.
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define mod 1000000007
int timer=1;
int vis[2000];
int low[2000],in[2000];
map<int,vector<int>> mp;
void dfs(int curr,int parr){
vis[curr] = 1;
low[curr]=in[curr]=timer;
timer++;
for(auto x:mp[curr]){
if(x==parr){
continue;
}
else if(vis[x]){
low[curr] = min(low[curr],in[x]);
}
else{
dfs(x,curr);
if(in[curr]<low[x]){
cout<<"bridge "<<curr<<" -> "<<x<<"\n";
}
low[curr] = min(low[curr],low[x]);
}
}
}
int main(){
#ifndef ONLINE_JUDGE
freopen("input.txt","r",stdin);
freopen("output.txt","w",stdout);
#endif
int n;
cin >> n;
for(int i=1;i<=n;i++){
int a,b;
cin >> a>>b;
mp[a].push_back(b);
mp[b].push_back(a);
}
dfs(1,-1);
}
Compiling Program...
Standard Input:
Interactive Console
Text
Program is not being debugged. Click "Debug" button to start program in debug mode.
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