Pagini recente » Cod sursa (job #1805678) | Cod sursa (job #1715181) | Cod sursa (job #916839) | Cod sursa (job #1617986) | Cod sursa (job #3246759)
#include <fstream>
#include <cstring>
#include <algorithm>
#include <vector>
using namespace std;
ifstream fin("bfs.in");
ofstream fout("bfs.out");
int n,m,st,x,y;
int a[10001][10001];
int q[1000001];
int viz[1000001];
int main()
{
fin>>n>>m>>st;
for(int i=1;i<=m;i++){
fin>>x>>y;
if(x!=y)
a[x][y]=1;
}
int p,u;
p=u=1;
q[p]=st;
viz[st]=1;
while(p<=u){
int k=q[p];
for(int i=1;i<=n;i++){
if(a[k][i]==1&&viz[i]==0){
q[++u]=i;
viz[i]=viz[k]+1;
}
}
p++;
}
for(int i=1;i<=n;i++)
fout<<viz[i]-1<<" ";
return 0;
}