# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
34381 | mohammad_kilani | Pipes (CEOI15_pipes) | C++14 | 582 ms | 13404 KiB |
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 <bits/stdc++.h>
using namespace std;
#define mod 1000007
#define oo 2000000000
const int M = 1500010 , N = 30011;
bitset< N > vis;
vector< short > g[N];
short dfs_low[N], dfs_num[N], num = 0 ;
int n , m , u , v;
void DFS(short node,short prnt){
vis[node] = true;
dfs_low[node] = dfs_num[node] = num++;
for(short i=0;i<g[node].size();i++){
if(g[node][i] == prnt) continue;
if(vis[g[node][i]]){
dfs_low[node] = min(dfs_low[node],dfs_num[g[node][i]]);
}
else{
DFS(g[node][i],node);
if(dfs_num[node] < dfs_low[g[node][i]]){
printf("%d %d\n",min(node,g[node][i]),max(node,g[node][i]));
}
dfs_low[node] = min(dfs_low[node],dfs_low[g[node][i]]);
}
}
}
int main() {
//freopen("in.txt","r",stdin);
scanf("%d%d",&n,&m);
for(int i=0;i<m;i++){
scanf("%d%d",&u,&v);
g[u].push_back(v);
g[v].push_back(u);
}
for(short i=1;i<=n;i++){
if(vis[i] == false) DFS(i,-1);
}
return 0;
}
Compilation message (stderr)
# | 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... |