Pagini recente » Cod sursa (job #202573) | Cod sursa (job #481997) | Cod sursa (job #1227760) | Cod sursa (job #1882257) | Cod sursa (job #2267167)
#include <fstream>
#include<vector>
using namespace std;
ifstream cin("bfs.in");
ofstream cout("bfs.out");
vector <int> v[1001];
int i,n,m,s,viz[100001],q[100001],x,y;
void coada(int x){
int k,p,u,i;
p=u=1;
q[p]=x;
while(p<=u){
k=q[p];
p++;
for(i=0;i<v[k].size();i++)
if(viz[v[k][i]]==0){
u++;
q[u]=v[k][i];
viz[v[k][i]]=viz[k]+1;
}
}
}
int main()
{
cin>>n>>m>>s;
for(i=1;i<=m;i++){
cin>>x>>y;
v[x].push_back(y);
// v[y].push_back(x);
}
viz[s]=1;
coada(s);
for(i=1;i<=n;i++)
cout<<viz[i]-1<<" ";
return 0;
}