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Cod sursa(job #856433)
#include <fstream>
#define inf 50000001
using namespace std;
ifstream fin ("dijkstra.in");
ofstream fout ("dijkstra.out");
struct edge
{
int source;
int dest;
int weight;
} v[250001];
int d[50001];
int main()
{
int i,n,m;
bool ready=0;
fin>>n>>m;
for (i=2;i<=n;i++) d[i]=inf;
for (i=1;i<=m;i++) fin>>v[i].source>>v[i].dest>>v[i].weight;
while (!ready)
{
ready=1;
for (i=1;i<=m;i++)
{
if (d[v[i].dest]>d[v[i].source]+v[i].weight)
{
d[v[i].dest]=d[v[i].source]+v[i].weight;
ready=0;
}
}
}
for (i=2;i<=n;i++) {if (d[i]==inf) d[i]=-1; fout<<d[i]<<" ";}
}