题解 | 简单密码

#include <ctype.h>
#include <stdio.h>

int main() 
{
    char password[101];
    scanf("%s",password);

    for(int i = 0;(password[i] !='\0')&&(password[i] != '\n');i ++)
    {
        char c = password[i];
        if(islower(c))
        {
            if (c >= 'a' && c <= 'c') password[i] = '2';
            else if (c >= 'd' && c <= 'f') password[i] = '3';
            else if (c >= 'g' && c <= 'i') password[i] = '4';
            else if (c >= 'j' && c <= 'l') password[i] = '5';
            else if (c >= 'm' && c <= 'o') password[i] = '6';
            else if (c >= 'p' && c <= 's') password[i] = '7';
            else if (c >= 't' && c <= 'v') password[i] = '8';
            else if (c >= 'w' && c <= 'z') password[i] = '9';
        }

        else if(isupper(c))
        {
            c = tolower(c);
            if(c == 'z') password[i] = 'a';
            else password[i] = c + 1;
        }
    }

    printf("%s",password);
    return 0;
}