Cod sursa(job #1515341)

Utilizator ionut98Bejenariu Ionut Daniel ionut98 Data 1 noiembrie 2015 15:18:06
Problema BFS - Parcurgere in latime Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.71 kb
#include<fstream>
#include<vector>
#include<deque>
using namespace std;
ifstream f("bfs.in");
ofstream g("bfs.out");
int n,m,x,y,start,i,nod;
bool viz[100005];
deque<int>q;
vector<int>v[100005];
int fin[100005];
int main()
{
    f>>n>>m>>start;
    for(i=1;i<=m;i++)
    {
        f>>x>>y;
        v[x].push_back(y);
    }
    fin[start]=1;
    viz[start]=1;
    q.push_back(start);
    while(!q.empty())
    {
        nod=q.front();
        q.pop_front();
        for(i=0;i<v[nod].size();i++)
        if(viz[v[nod][i]]==0)
        {
            fin[v[nod][i]]=fin[nod]+1;
            q.push_back(v[nod][i]);
        }
    }
    for(i=1;i<=n;i++)
      g<<fin[i]-1<<" ";
    return 0;
}