Cod sursa(job #1691679)
Utilizator | Data | 19 aprilie 2016 09:32:03 | |
---|---|---|---|
Problema | BFS - Parcurgere in latime | Scor | 0 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.53 kb |
#include <bits/stdc++.h>
using namespace std;
int n,m,s,c[100005],x,y;
vector <int> a[100005];
void bfs(int nod, int k){
c[nod]=k;
for(int i=0;i<a[nod].size();i++){
if(c[a[nod][i]]==-1 || k+1<c[a[nod][i]]) bfs(a[nod][i],k+1);
}
}
int main()
{
ifstream in("bfs.in");
ofstream out("bfs.out");
cin >> n >> m >> s;
for(int i=1;i<=m;i++){
cin >> x >> y;
a[x].push_back(y);
}
fill(c+1,c+n+1,-1);
bfs(s,0);
for(int i=1;i<=n;i++) cout << c[i] << ' ';
}