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#include <fstream>
#include <vector>
#include <queue>
#include <bitset>
#include <algorithm>
using namespace std;
const int MAX_N = 50005;
const int INF = 0x3f3f3f3f;
vector < pair <int, int> > adj[MAX_N];
int main(void) {
ifstream fi("bellmanford.in");
int nodes, edges;
fi >> nodes >> edges;
for (int i = 0; i < edges; ++ i) {
int x, y, c;
fi >> x >> y >> c;
adj[x].push_back(make_pair(y, c));
}
fi.close();
queue <int> Q;
bitset <MAX_N> in_queue(false);
vector <int> dist(MAX_N, INF), cnt_in_queue(MAX_N, 0);
int negative_cycle = false;
dist[1] = 0, Q.push(1), in_queue[1] = true;
while (!Q.empty() and !negative_cycle) {
int x = Q.front();
Q.pop();
in_queue[x] = false;
vector < pair <int, int> >::iterator it;
for (it = adj[x].begin(); it != adj[x].end(); it++)
if (dist[x] < INF)
if (dist[it->first] > dist[x] + it->second) { // distanta pana la it->first poate fi imbunatatita
dist[it->first] = dist[x] + it->second;
if (!in_queue[it->first])
if (cnt_in_queue[it->first] > nodes)
negative_cycle = true;
else {
Q.push(it->first);
in_queue[it->first] = true;
cnt_in_queue[it->first]++;
}
}
}
ofstream out("bellmanford.out");
if (!negative_cycle) {
for (int i = 2; i <= nodes; ++ i)
out << dist[i] << " ";
}
else
out << "Ciclu negativ!\n";
out.close();
return 0;
}