Cod sursa(job #150601)
Utilizator | Pal George Catalin georgepal | Data | 7 martie 2008 08:34:38 |
---|---|---|---|
Problema | Parcurgere DFS - componente conexe | Scor | 0 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.54 kb |
#include<fstream.h>
ifstream f("dfs.in");
ofstream g("dfs.out");
int a[3000][3000],viz[3000],m,n,ct;
void citire_graf()
{
int x,y,i;
f>>n>>m;
for(i=1;i<=n;i++)
{f>>x>>y;
a[x][y]=a[y][x]=1;
}
f.close();
}
void DF(int v)
{viz[v]=1;
for(int i=1;i<=n;i++)
if(a[v][i]==1 &&!viz[i])
DF(i);
}
int primul0()
{
for(int i=1;i<=n;i++)
if(!viz[i])
return i;
return 0;
}
int main()
{
int v;
citire_graf();
do{
v=primul0();
if(v) {ct++;DF(v);
}
}
while(v);
g<<ct;
return 0;}