c语言代码解决问题

解题思路:

注意事项:

参考代码:

#include<stdio.h>

#include<string.h>

int main()

{

    char a;

    int sum[26] = { 0 },i;

    while (1)

    {

        a = getchar();

        if (a == '#')

            break;

        sum[(int)(a - 'a')]++;

    }

    for (i = 0; i < 26; i++)

    {

        printf("%c ", (char)('a' + i));

        printf("%d\n", sum[i]);

    }

    return 0;

}