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Cod sursa(job #605908)
#include<stdio.h>
const int maxn=50005;
const int inf=30000;
struct graf
{
int nod,cost;
graf *next;
};
graf *a[maxn];
int n,m;
unsigned short int d[maxn];
bool q[maxn];
void add(int where,int what,int cost)
{
graf *q= new graf;
q->nod=what;
q->cost=cost;
q->next=a[where];
a[where]=q;
}
void read()
{
int x,y,z;
freopen("dijkstra.in","r",stdin);
scanf("%d %d",&n,&m);
for(int i=1;i<=m;i++)
{
scanf("%d %d %d",&x,&y,&z);
add(x,y,z);
}
}
void dijkstra()
{
for(int i=2;i<=n;i++)
d[i]=inf;
int min,pmin=0;
for(int i=1;i<=n;i++)
{
min=inf;
for(int j=1;j<=n;j++)
if(d[j]<min && q[j]==0)
min=d[j],pmin=j;
q[pmin]=1;
graf *t=a[pmin];
while (t)
{
if(d[t->nod]>d[pmin]+t->cost)
d[t->nod]=d[pmin]+t->cost;
t=t->next;
}
}
}
int main()
{
freopen("dijkstra.out","w",stdout);
read();
dijkstra();
for(int i=2;i<=n;i++)
if(d[i]==inf) printf("0 ");
else printf("%hd ",d[i]);
}