HJ21 简单密码

HPL__001

于 2023-02-08 22:12:00 发布

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分类专栏：刷刷刷题文章标签： c++

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该C++代码示例读取一行输入字符串，然后对每个字符进行处理。大写字母向下平移32位变成小写字母，小写字母在字母表中循环（z转为a），同时将特定的小写字母映射到数字2-9。

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#include <iostream>
#include <string>
using namespace std;

int main() {
    string str;
    getline(cin, str);

    for(int i = 0; i < str.size(); ++i){
        if(str[i] >= 65 && str[i] <= 90){
            str[i] += 32;
            if(str[i] == 'z'){
                str[i] = 'a';
            }
            else{
                str[i] += 1;
            }
            continue;
        }

        if(str[i] == 'a' || str[i] == 'b' || str[i] == 'c'){
            str[i] = '2';
        }
        if(str[i] == 'd' || str[i] == 'e' || str[i] == 'f'){
            str[i] = '3';
        }
        if(str[i] == 'g' || str[i] == 'h' || str[i] == 'i'){
            str[i] = '4';
        }
        if(str[i] == 'j' || str[i] == 'k' || str[i] == 'l'){
            str[i] = '5';
        }
        if(str[i] == 'm' || str[i] == 'n' || str[i] == 'o'){
            str[i] = '6';
        }
        if(str[i] == 'p' || str[i] == 'q' || str[i] == 'r' || str[i] == 's'){
            str[i] = '7';
        }
        if(str[i] == 't' || str[i] == 'u' || str[i] == 'v'){
            str[i] = '8';
        }
        if(str[i] == 'w' || str[i] == 'y' || str[i] == 'z' || str[i] == 'x'){
            str[i] = '9';
        }
    }
    cout << str << endl;
}