Cod sursa(job #2665171)
| Utilizator | Data | 30 octombrie 2020 11:16:24 | |
|---|---|---|---|
| Problema | BFS - Parcurgere in latime | Scor | 0 |
| Compilator | cpp-64 | Status | done |
| Runda | Arhiva educationala | Marime | 0.63 kb |
#include <fstream>
#include <vector>
#include <queue>
using namespace std;
ifstream f("date.in");
ofstream g("date.out");
vector<int> v[100010];
queue<int> q;
int n,m,s,d[100010],x,y,i;
int main()
{
f>>n>>m>>s;
for(i=0;i<m;i++)
{
f>>x>>y;
v[x].push_back(y);
}
d[s]=1;
q.push(s);
while(q.size())
{
x=q.front();
q.pop();
for(auto j:v[x])
if(!d[j])
{
d[j]=d[x]+1;
q.push(j);
}
}
for(i=1;i<=n;i++)
g<<d[i]-1<<' ';
f.close();
g.close();
return 0;
}
