Pagini recente » Cod sursa (job #1337830) | Cod sursa (job #781580) | Cod sursa (job #1946193) | Cod sursa (job #2100303) | Cod sursa (job #2192318)
#include <iostream>
#include <fstream>
#include <vector>
#include <deque>
#define dMAX 100000
using namespace std;
int n, m, x, y, S, pVerif;
vector<int> graf[dMAX + 2];
deque<int> myDeque;
bool viz[dMAX + 2];
int cost[dMAX + 2];
ifstream fin("bfs.in");
ofstream fout("bfs.out");
int main()
{
int i, j;
fin >> n >> m >> S;
for (i = 1; i <= m; i++) {
fin >> x >> y;
graf[x].push_back(y);
}
myDeque.push_back(S);
cost[S] = true;
while (!myDeque.empty()) {
pVerif = myDeque.front();
myDeque.pop_front();
viz[pVerif] = true;
for (i = 0; i < graf[pVerif].size(); i++) {
if (!viz[graf[pVerif][i]]) {
cost[graf[pVerif][i]] = cost[pVerif] + 1;
myDeque.push_front(graf[pVerif][i]);
}
}
}
for (i = 1; i <= n; i++) {
fout << cost[i] - 1 << ' ';
}
return 0;
}