Cod sursa(job #2926324)
Utilizator | Data | 17 octombrie 2022 18:00:43 | |
---|---|---|---|
Problema | BFS - Parcurgere in latime | Scor | 0 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.72 kb |
#include<bits/stdc++.h>
#define MAX 100005
#define pb push_back
using namespace std;
ifstream fin("bfs.in");
ofstream fout("bfs.out");
int n,m,s,viz[MAX],x,a,b;
vector<int> v[MAX];
queue<int> q;
int bfs(int nod)
{
q.push(nod);
viz[nod]=1;
while(q.empty()==0)
{
x=q.front();
q.pop();
for(int y:v[x])
{
if(viz[y]==0)
{
viz[y]=viz[x]+1;
q.push(y);
}
}
}
}
int main()
{
fin>>n>>m>>s;
for(int i=1;i<=m;i++)
{
fin>>a>>b;
v[a].pb(b);
}
bfs(s);
for(int i=1;i<=n;i++)
{
fout<<viz[i]-1<<" ";
}
return 0;
}