void qs (int al], int 1, int r)t int i, j, pivot; 1) return; if(r if(rs=1+1) { swap (a, l, r); return // median of three int m = (1+r)/2; if(a[m] al]) if(a[r] = j) break ; swap (a, i, j); swap (a, i, r-1) II replace pivot qs (a, , i-1); void swap (int a, int i, int j) i int tmp tmp= a[i]; a[j] tmp