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Cod sursa(job #933691)
#include<iostream>
#include<fstream>
#include<limits.h>
using namespace std;
ifstream in("dijkstra.in");
ofstream out("dijkstra.out");
#define N 1500
int a[N][N],d[N],v[N],t[N],m,n,nod=1;
#define inf INT_MAX/2
void cit(){
in>>n>>m;
for(int i=1;i<=n;i++)
for(int j=1;j<=n;j++)
if(!a[i][j] && i!=j)
a[i][j]=inf;
for(int i=1;i<=m;i++){
int x,y,c;
in>>x>>y>>c;
a[x][y]=c;
}
}
void dij(){
for(int i=1;i<=n;i++){
d[i]=a[nod][i];
if(d[i]!=inf)
t[i]=nod;
}
v[nod]=1;
t[nod]=0;
int k=n-1;
while(k--){
int dmin=inf,y;
for(int i=1;i<=n;i++)
if(!v[i] && d[i]<=dmin){
dmin=d[i];
y=i;
}
v[y]=1;
for(int i=1;i<=n;i++){
if(v[i])
continue;
int nd=d[y]+a[y][i];
if(nd<d[i]){
d[i]=nd;
t[i]=y;
}
}
}
}
int main(){
cit();
dij();
for(int i=2;i<=n;i++)
if(d[i]==inf)
out<<0<<' ';
else
out<<d[i]<<' ';
return 0;
}