Pagini recente » Cod sursa (job #2520264) | Cod sursa (job #3195670) | Cod sursa (job #2227115) | Cod sursa (job #1209409) | Cod sursa (job #3194624)
#include <fstream>
#include <queue>
#include <vector>
using namespace std;
ifstream cin ("dijkstra.in");
ofstream cout ("dijkstra.out");
struct el
{
int nod,cost;
bool operator < (const el &A) const{
return cost > A.cost;
}
};
priority_queue < el > q;
vector < el > v[25005];
int n,m,x,y,z;
int distante[25005];
void Dijkstra()
{
q.push({1,0});
while (!q.empty())
{
int valoare=q.top().cost;
int nod =q.top().nod;
for (int i=0;i<v[nod].size();i++)
{
el vecin=v[nod][i];
if ((distante[nod]+vecin.cost < distante[vecin.nod]) || (distante[vecin.nod]==0))
{
distante[vecin.nod]=distante[nod]+vecin.cost;
q.push({vecin.nod,distante[vecin.nod]});
}
}
q.pop();
}
}
int main()
{
cin >> n >> m;
for (int i=1;i<=n;i++)
{
cin >> x >> y >> z;
v[x].push_back({y,z});
}
Dijkstra();
for (int i=2;i<=n;i++)
cout << distante[i] << " ";
return 0;
}