Pagini recente » Cod sursa (job #3204728) | Cod sursa (job #2655565) | Cod sursa (job #37711) | Cod sursa (job #2127573) | Cod sursa (job #2544973)
#include <bits/stdc++.h>
#define FILE "dijkstra"
#ifdef FILE
std::ifstream fin(FILE ".in");
std::ofstream fout(FILE ".out");
#else
#define fin cin
#define fout cout
#endif // FILE
using namespace std;
#define LMax 50005
class graph {
public:
vector <pair<int, int> > v[LMax];
queue <int> q;
int Values[LMax];
int lung[LMax];
int x, y, n, m, p, l;
void Dijkstra() {
q.push(1);
while (!q.empty()) {
x = q.front();
q.pop();
int lim = v[x].size();
for (int i = 0; i < lim; ++i)
if (Values[x] + v[x][i].second < Values[v[x][i].first] || Values[v[x][i].first] == 0)
Values[v[x][i].first] = Values[x] + v[x][i].second, q.push(v[x][i].first);
}
}
void afisare() {
for (int i = 2; i <= n; ++i)
fout << Values[i] << ' ';
}
void citire() {
fin >> n >> m;
fill(Values + 1, Values + n + 1, 0);
Values[1] = 0;
for (int i = 1; i <= m; ++i)
fin >> x >> y >> l, v[x].push_back({y, l});
}
};
int main() {
graph g;
g.citire();
g.Dijkstra();
g.afisare();
return 0;
}