Pagini recente » Monitorul de evaluare | Statistici Luca George (new_luca) | Monitorul de evaluare | Istoria paginii utilizator/ancah | Cod sursa (job #2888049)
#include <fstream>
#include <vector>
#include <queue>
std::ifstream fin("bfs.in");
std::ofstream fout("bfs.out");
int n, m;
const int NLIM = 101;
std::vector<int> V[NLIM];
std::queue<int>Q;
int distanta[NLIM];
void BFS() {
int nod, vecin;
while (!Q.empty()) {
nod = Q.front();
Q.pop();
for (unsigned int i = 0; i < V[nod].size(); ++i) {
vecin = V[nod][i];
//fout << vecin << " ";
if (distanta[vecin] == -1) {
Q.push(vecin);
distanta[vecin] = distanta[nod] + 1;
}
}
}
}
void citire() {
int nod_start;
fin >> n >> m >> nod_start;
for (int i = 1; i <= m; ++i) {
int x, y;
fin >> x >> y;
V[x].push_back(y);
}
for (int i = 1; i <= n; ++i)
distanta[i] = -1;
distanta[nod_start] = 0;
Q.push(nod_start);
BFS();
for (int i = 1; i <= n; i++)
fout << distanta[i] << " ";
}
int main() {
citire();
return 0;
}