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