nush cum la voi la mine cu quicksort a mers pe maxim 12ms

struct dvc{long a,b;};
void qsort(long l,long r){
long i=l,j=r,p=t[(l+r)/2].a; dvc aux;
while (i<j){
while (t.a<p) i++;
while (t[j].a>p) j--;
if (i<=j) aux=t, t=t[j], t[j]=aux, i++, j--;
}
if (j>l) qsort(l,j);
if (i<r) qsort(i,r);
}