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Cod sursa(job #900137)
#include <iostream>
#include<fstream>
#define OO 150000
#define N 10001
using namespace std;
int cost[N][N], d[N];
int main()
{
fstream f("dijkstra.in",ios::in),g("dijkstra.out",ios::out);
int i,j,m,n,vf,x,y,viz[N]={0};
f>>n>>m;
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
if(i!=j)
cost[i][j]=OO;
for(i=1;i<=m;i++)
{
f>>x>>y;
f>>cost[x][y];
}
for(i=1;i<=n;i++)
d[i]=cost[1][i];
int min;
viz[1]=1;
do
{
min=OO;
for(i=1;i<=n;i++)
if(min>d[i]&&viz[i]==0)
{
min=d[i];
vf=i;
}
if(min<OO)
{
viz[vf]=1;
for(i=1;i<=n;i++)
if(d[i]>d[vf]+cost[vf][i]&&viz[i]==0)
d[i]=d[vf]+cost[vf][i];
}
}
while(min!=OO);
for(i=2;i<=n;i++)
if(d[i]==OO)
g<<0<<" ";
else
g<<d[i]<<" ";
}