I was trying to solve D-query here problem on spoj.I searched for the solution and found one blog here and solution here.I got accepted.But the problem is that when i am sorting queries using qsort function it's giving tle.

when i am using this with sort function it's fine

bool cmp(node x, node y) { if(x.x/BLOCK != y.x/BLOCK) { return x.x/BLOCK < y.x/BLOCK; } return x.y < y.y; }

but when i am using this with qsort it's giving tle

int inline cmp(const void *xx,const void *yy) { nod *x = (nod *) xx; nod *y = (nod *) yy; if(x->x!=y->x) return (x->x>y->x)?1:-1; return (x->y>y->y)?1:(x->yy)?-1:0; }

my code is here

Please any one give me answer why is this happening....thanks in advance