为什么不初始化就通不过

解题思路:

注意事项:

参考代码:

#include <stdio.h>

#include <string.h>

int main()

{

     int i;

     char a[101] = {'\0'};

     char *p = a;

     while(~scanf("%c",p++));

     *p = '\0';

     int len = strlen(a);

     char buffer = a[0];

     for(i=0;i<len;i++)

     {

         if(a[i+1]=='\0')

         a[i] = a[i] + buffer;

         else

         a[i] = a[i] + a[i+1];

         printf("%c",a[i]);

     }

    return 0;

}