Cod sursa(job #3268555)
| Utilizator | Data | 15 ianuarie 2025 22:02:51 | |
|---|---|---|---|
| Problema | BFS - Parcurgere in latime | Scor | 100 |
| Compilator | cpp-64 | Status | done |
| Runda | Arhiva educationala | Marime | 0.75 kb |
#include <bits/stdc++.h>
using namespace std;
ifstream fin ("bfs.in");
ofstream fout ("bfs.out");
int n,m,s,x,y,i,d[100005];
queue <int> q;
vector <int> v[100005];
void bfs (int s)
{
int nod;
d[s]=1;
q.push(s);
while (!q.empty())
{
nod=q.front();
q.pop();
for (int i:v[nod])
if (d[i]==0)
{
d[i]=d[nod]+1;
q.push(i);
}
}
}
int main()
{
fin>>n>>m>>s;
for (i=1;i<=m;i++)
{
fin>>x>>y;
v[x].push_back(y);
}
bfs(s);
for (i=1;i<=n;i++)
{
fout<<d[i]-1<<" ";
}
return 0;
}
