Pagini recente » Cod sursa (job #211446) | Cod sursa (job #2400160) | Cod sursa (job #2850816) | Cod sursa (job #2639267) | Cod sursa (job #2774362)
#include <bits/stdc++.h>
using namespace std;
ifstream in("bfs.in");
ofstream out("bfs.out");
#define cin in
#define cout out
#define pb push_back
#define f first
#define s second
#define FOR(i, a, b) for(int i = a; i <= b; ++i)
typedef long long ll;
typedef long double lld;
typedef unsigned long long ull;
const lld pi = 3.14159265358979323846;
const ll mod = 1000000007;
const ll nmax = 1e6;
ll n, m, x, y, z, i, j, k, l, r, p;
ll v[nmax + 1];
//ll a[nmax + 1];
//ll b[nmax + 1];
ll ans = 0, cnt = 0, maxim;
string s, t;
vector <ll> edges[nmax + 1];
queue <ll> q;
void BFS(){
ll node;
while(!q.empty()){
node = q.front();
q.pop();
FOR(i, 0, edges[node].size() - 1){
if(v[edges[node][i]] == -1){
q.push(edges[node][i]);
v[edges[node][i]] = v[node] + 1;
}
}
}
}
void solve(int tc = 0){
cin >> n >> m >> p;
while(m--){
cin >> x >> y;
edges[x].pb(y);
}
memset(v, -1, sizeof(v));
q.push(p);
v[p] = 0;
BFS();
FOR(i, 1, n){
cout << v[i] << " ";
}
}
int main(){
ios_base::sync_with_stdio(false);
cin.tie(NULL);
int tc = 1;
//cin >> tc;
FOR(i, 1, tc)
solve(i);
}