Pagini recente » Cod sursa (job #1896617) | Cod sursa (job #1488450) | Cod sursa (job #2858100) | Cod sursa (job #1019666) | Cod sursa (job #2342521)
#include <iostream>
#include <fstream>
#include <vector>
using namespace std;
ifstream f("dfs.in");
ofstream g("dfs.out");
#define Nmax 100005
vector <int> G[Nmax];
int n,m,c,s;
int D[Nmax];
void read()
{
f>>n>>m>>s;
for(int i=1;i<=m;i++)
{
int x,y;
f>>x>>y;
G[x].push_back(y);
}
for(int i=1;i<=n;i++)
D[i]=-1;
D[s]=0;
}
void dfs(int nod)
{
for(int i=0;i<G[nod].size();i++)
{
int vecin=G[nod][i];
if(D[vecin]==-1)
{
D[vecin]=D[nod]+1;
dfs(vecin);
}
}
}
int main()
{
read();
dfs(s);
for(int i=1;i<=n;i++)
g<<D[i]<<' ';
return 0;
}