华为机试第二十一题：HJ21 简单密码

一、网址链接

牛客----

二、题目描述

①描述

②输入描述

输入一组密码，长度不超过100个字符。

③输出描述

输出密码变换后的字符串

④示例一

输入： YUANzhi1987
输出： zvbo9441987

三、代码实现

①Java代码实现

import java.io.*;

public class Main {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        String str = br.readLine();

            StringBuffer sb = new StringBuffer();
            for (int i = 0; i < str.length(); i++) {
                //获取第i个字符
                char c = str.charAt(i);
                //判断，处理
                if (c >= 'A' && c < 'Z') {
                    c = (char) (c + 'b' - 'A');
                } else if (c == 'Z') {
                    c = 'a';
                } else if (c>='a' && c<='c') {
                    c = '2';
                } else if (c>='d' && c<='f') {
                    c = '3';
                } else if (c>='g' && c<='i') {
                    c = '4';
                } else if (c>='j' && c<='l') {
                    c = '5';
                } else if (c>='m' && c<='o') {
                    c = '6';
                } else if (c>='p' && c<='s') {
                    c = '7';
                } else if (c>='t' && c<='v') {
                    c = '8';
                } else if (c>='w' && c<='z') {
                    c = '9';
                }
                sb.append(c);
            }
            System.out.println(sb.toString().trim());
    }
}

②C代码实现

#include <stdio.h>
#define MAXS 101
int main(void)
{
    int i;
    int token;
    char str[MAXS];
    while(scanf("%s", str) != EOF)
    {
        i = 0;
        while(str[i])
        {
            if(str[i] >= 'A' && str[i] <= 'z') 
            if(str[i] <= 'Z') // up 
            {
               if(str[i] == 'Z') str[i] = 'a';
               else str[i] = str[i] + 1 +'a' - 'A';
            }
            else
            {
                if(str[i] >= 'a' && str[i] <= 'r')  
                    str[i] = (str[i] -'a') / 3 + '2';
                else if(str[i] == 's') str[i] = '7';
                else if(str[i] >='t' && str[i] <='v') str[i] = '8';
                else str[i] = '9';
            }
            ++i;
        }
        printf("%s\n", str);
    }
}