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Cod sursa(job #914765)
#include<stdio.h>
struct nod
{
int vecin,cost;
nod *adr;
};
nod *v[50001],*p;
void adaug(nod *&L,int v,int c)
{
nod *p;
p=new nod;
p->vecin=v;
p->cost=c;
p->adr=L;
L=p;
}
int N,M,i,x,y,c,k,vmin,d[50001],t[50001],viz[50001];
int main()
{
freopen("dijkstra.in","rt",stdin);
freopen("dijkstra.out","wt",stdout);
scanf("%d %d",&N,&M);
for(i=1;i<=N;i++)
{
v[i]=0;
}
for(i=1;i<=M;i++)
{
scanf("%d %d %d",&x,&y,&c);
adaug(v[x],y,c);
}
for(i=1;i<=N;i++)
{
d[i]=1000000000;
t[i]=0;
viz[i]=0;
}
viz[1]=1;
d[1]=0;
for(p=v[1];p!=0;p=p->adr)
{
d[p->vecin]=p->cost;
t[p->vecin]=1;
}
for(k=1;k<=N-1;k++)
{
vmin=1000000000;
for(i=1;i<=N;i++)
{
if(viz[i]==0 && d[i]<vmin)
{
x=i;
vmin=d[i];
}
}
viz[x]=1;
for(p=v[x];p!=0;p=p->adr)
{
if(d[p->vecin]>p->cost+d[x] && viz[p->vecin]==0)
{
d[p->vecin]=p->cost+d[x];
t[p->vecin]=x;
}
}
}
for(i=2;i<=N;i++)
{
if(d[i]==1000000000)
{
printf("0 ");
}
else
{printf("%d ",d[i]);}
}
fclose(stdout);
return 0;
}