Cod sursa(job #1696672)
Utilizator | serban andrei-catalin serban_andrei | Data | 29 aprilie 2016 17:00:20 |
---|---|---|---|
Problema | Parcurgere DFS - componente conexe | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.59 kb |
# include <bits/stdc++.h>
using namespace std;
int n,m,i,x,y,compcon;
bool viz[100010];
vector <int> a[100010];
void dfs(int x)
{
viz[x]=1;
for(auto i : a[x])
if(viz[i]==0)
dfs(i);
}
int main()
{
ifstream f("dfs.in");
ofstream g("dfs.out");
f>>n>>m;
while(i<m)
{
f>>x>>y;
a[x].push_back (y);
a[y].push_back (x);
++i;
}
for(i=1;i<=n;i++)
{
if(viz[i]==0)
{
compcon++;
dfs(i);
}
}
g<<compcon<<'\n';
return 0;
}