Pagini recente » Cod sursa (job #533194) | Borderou de evaluare (job #1776770) | Borderou de evaluare (job #2306687) | Borderou de evaluare (job #646543) | Cod sursa (job #2662621)
#include <iostream>
#include <fstream>
#include <vector>
#include <queue>
using namespace std;
ifstream fin("dfs.in");
ofstream fout("dfs.out");
int mn[100005];
int n, m, x, y, start;
vector <int> nod[100005];
queue <int> q;
void read()
{
fin >> n >> m >> start;
for (int i = 0; i < m; ++ i) {
fin >> x >> y;
nod[x].push_back(y);
}
}
int main()
{
read();
for(int i=1;i<=n;i++)
mn[i]=-1;
mn[start]=0;
q.push(start);
while(!q.empty())
{
int pos=q.front();
q.pop();
for(int i=0;i<nod[pos].size();i++)
{
if(mn[nod[pos][i]]==-1){
mn[nod[pos][i]]=mn[pos]+1;
q.push(nod[pos][i]);
}
}
}
for(int i=1;i<=n;i++)
fout<<mn[i]<<" ";
return 0;
}