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Cod sursa(job #390657)
#include <stdio.h>
#define max 100010
struct lista
{
int nod,cost;
lista *next;
};
lista *g[max],*p;
int q[max],d[max],n,m,i,j,c,u,ultim,prim;
char inq[max];
int main()
{
freopen("dijkstra.in","r",stdin);
freopen("dijkstra.out","w",stdout);
scanf("%d%d",&n,&m);
for(; m--; )
{
scanf("%d%d%d",&i,&j,&c);
p=new lista; p->nod=j; p->cost=c;
p->next=g[i]; g[i]=p;
}
for(i=1; i<=n; i++) d[i]=max;
d[1]=0; q[0]=1;
while(prim<=ultim)
{
u=q[prim++];
inq[u]=0;
for(p=g[u]; p!=NULL; p=p->next)
if(d[p->nod]>d[u]+p->cost)
{
if(!inq[p->nod])
{
inq[p->nod]=1;
q[++ultim]=p->nod;
}
d[p->nod]=d[u]+p->cost;
}
}
for(i=2; i<=n; i++)
if(d[i]==max) printf("0 ");
else printf("%d ",d[i]);
return 0;
}