Cod sursa(job #513106)
Utilizator | dinu dan dinud | Data | 15 decembrie 2010 08:53:29 |
---|---|---|---|
Problema | Parcurgere DFS - componente conexe | Scor | 50 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.51 kb |
#include<stdio.h>
#define DIM 10001
int i,m,n,a[DIM][DIM],nc,v[DIM],x,y;
FILE *f = fopen("dfs.in","r");
FILE *g = fopen("dfs.out","w");
void df(int k){
int i;
v[k]=1;
for(i=1;i<=n;i++)
if(a[k][i]==1 && v[i]==0){
df(i);
}
}
int main (){
fscanf(f,"%d %d",&n,&m);
for(i=1;i<=m;i++){
fscanf(f,"%d %d",&x,&y);
a[x][y]=a[y][x]=1;
}
x=1;
for(i=1;i<=n;i++)
if(v[i]==0){
df(i);
nc++;
}
fprintf(g,"%d ",nc);
fclose(f);
fclose(g);
return 0;
}