Pagini recente » Cod sursa (job #2449183) | Cod sursa (job #1754459) | Cod sursa (job #1594817) | Cod sursa (job #947705) | Cod sursa (job #2050449)
#include <bits/stdc++.h>
using namespace std;
ifstream fin("bfs.in");
ofstream fout("bfs.out");
const int NMAX = 1e5 + 5;
int n,m,s,x,y,level[NMAX],v1[NMAX];
queue <int> q;
vector <int> v[NMAX];
bool ap[100];
void read()
{
fin>>n>>m>>s;
for (int i=1; i<=m; ++i)
{
fin>>x>>y;
v[x].push_back(y);
v1[x]=y;
}
}
void bfs()
{
ap[s]=true;
level[s]=1;
q.push(s);
while (q.size())
{
x=q.front();
for (auto &it : v[x])
{
if (!ap[it]) level[it]=level[x]+1,q.push(it);
ap[it]=true;
}
q.pop();
}
}
int main()
{
read();
bfs();
for (int i=1; i<=n; ++i)
fout<<v1[i]<<' ';
fout<<'\n';
for (int i=1; i<=n; ++i)
fout<<level[i]-1<<' ';
return 0;
}