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Cod sursa(job #409850)
#include<iostream>
#include<fstream>
#define INF 32000
using namespace std;
int a[250001][3],d[50001],n,x=1,i,m,nr=1;
int main()
{
freopen("dijkstra.in","r",stdin);
freopen("dijkstra.out","w",stdout);
cin>>n>>m;
for(i=2;i<=n;i++)
d[i]=INF;
d[1]=0;
for(i=1;i<=m;i++)
{
cin>>a[i][0]>>a[i][1]>>a[i][2];
if(a[i][0]==1) d[a[i][1]]=a[i][2];
}
while(x && nr<n)
{
x=0;
for(i=1;i<=m;i++)
if(d[a[i][1]]>d[a[i][0]]+a[i][2])
{d[a[i][1]]=d[a[i][0]]+a[i][2];x=1;}
nr++;
}
for(i=2;i<=n;i++) { if(d[i]==INF) cout<<0<<" "; else cout<<d[i]<<" "; }
return 0;
}