Pagini recente » Cod sursa (job #1774802) | Cod sursa (job #2904383) | Cod sursa (job #384627) | Cod sursa (job #1778271) | Cod sursa (job #1061744)
#include <iostream>
#include <vector>
#include <queue>
#include <cstdio>
#define nmax 100005
using namespace std;
int N, M, S;
vector<int> graf[nmax];
queue<int> coada;
int sol[nmax];
void citire()
{
cin >> N >> M >> S;
for(int i = 1; i <= M; i++)
{
int x, y;
cin >> x >> y;
graf[x].push_back(y);
}
}
void latime()
{
coada.push(S);
sol[S] = 1;
while(!coada.empty())
{
int v = coada.front();
coada.pop();
vector<int>::iterator it;
for(it = graf[v].begin(); it != graf[v].end(); ++it)
{
if(sol[*it] == 0)
{
sol[*it] = sol[v] + 1;
coada.push(*it);
}
}
}
}
void afisare()
{
for(int i = 1; i <= N; i++)
cout << sol[i]-1 << ' ';
}
int main()
{
freopen("bfs.in", "r", stdin);
freopen("bfs.out", "w", stdout);
citire();
latime();
afisare();
return 0;
}