Pagini recente » Cod sursa (job #711976) | Cod sursa (job #2929230) | Cod sursa (job #465173) | Cod sursa (job #2131901) | Cod sursa (job #2329983)
#include <bits/stdc++.h>
using namespace std;
ifstream fin("dijkstra.in");
ofstream fout("dijkstra.out");
int n, m;
priority_queue<pair<int, int>, vector<pair<int, int>>, greater<pair<int, int>>>heap;
vector<pair<int, int>>G[50001];
int D[50001];
int main()
{
fin>>n>>m;
for(int i=1; i<=m; ++i)
{
int x, y, c;
fin>>x>>y>>c;
G[x].push_back(make_pair(y, c));
}
heap.push(make_pair(1, 0));
for(int i=2; i<=n; ++i)
{
D[i]=INT_MAX;
heap.push(make_pair(i, D[i]));
}
while(!heap.empty())
{
int nod=heap.top().first;
heap.pop();
for(auto it:G[nod])
{
if(D[it.first]>D[nod]+(it.second))
{
D[it.first]=D[nod]+(it.second);
}
}
}
for(int i=2; i<=n; ++i) fout<<D[i]<<" ";
return 0;
}