Pagini recente » Cod sursa (job #2717391) | Cod sursa (job #1456920) | Cod sursa (job #978402) | Cod sursa (job #1160479) | Cod sursa (job #2174961)
#include <bits/stdc++.h>
using namespace std;
ifstream f("bfs.in");
ofstream g("bfs.out");
int n,m,viz[100001],nrc,c[100001],s;
vector <int> v[100001];
void bfs(int x)
{
viz[x]=1;
int in=1,sf=1;
c[in]=x;
while(in<=sf)
{
int y=c[in];
for(int i=0;i<v[y].size();i++)
{
int vecin=v[y][i];
if(!viz[vecin])
{
c[++sf]=vecin;
viz[vecin]=viz[y]+1;
}
}
in++;
}
}
void citire()
{
f>>n>>m>>s;
for(int i=1; i<=m; i++)
{
int x,y;
f>>x>>y;
v[x].push_back(y);
}
}
int main()
{
citire();
bfs(s);
for(int i=1;i<=n;i++)
cout<<viz[i]-1<<' ';
}