Qsort Shallow degree analysis

#include <stdio.h>
#include <string.h>
Standard library for the <stdlib.h>//standard library qsort #include
Char s[10000],n,i;
int cmp (const void *a, const void *B)//From small to large do not join formal parameters
{
Return (* (int *) a-* (int *) b);
}
int comp (const void *a,const void *b)//from large to small
{
Return (* (char *) b-* (char *) a);//By changing the type to match the sort of int or char
}
int main ()
{
scanf ("%d", &n);
GetChar ()//Sort string to prevent the carriage return symbol from being absorbed
for (i=0;i<n;i++)
scanf ("%c", &s[i]);
Qsort (S,n,sizeof (s[0]), comp);
for (i=0;i<n;i++) printf ("%c", S[i]);
return (0);
}

Qsort Shallow degree analysis