在线编程：字符串的完美度

#include <stdlib.h>int perfect(const char *s){    char    *p=s;    int count_array[26]={0};    int count=26;    int idle=0;

    int i=0;    to_upper(p);    while(*p)        count_array[*p++ - 'A']++;    sort(&count_array);    for(i=0;i<sizeof(count_array)/sizeof(int);i++)        idle+=count_array[i]*count--;    return idle;}void sort(int *array){    int i=0;    int tmp=0;    int j=0;    for(i=0;i<26;i++)    {        for(j=i;j<26;j++)        {            if(array[j]>array[i])            {                tmp=array[j];                array[j]=array[i];                array[i]=tmp;            }        }    }}void to_upper(char *s){    while(*s)    {        if(*s > 96 &&*s <= 123)            *s=*s-32;        *s++;    }}int main(){    char s[20]="DAD";    printf("pec is %d!\n",perfect(s));}

为什么没过呢？求看客指点