华为OD机试 - 密码输入检测（Java & JS & Python & C & C++）

以下是不同编程语言的解决方案：

Java:

import java.util.Scanner;
 
public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String password = scanner.nextLine();
        boolean isValid = isValidPassword(password);
        System.out.println(isValid ? "YES" : "NO");
    }
 
    private static boolean isValidPassword(String password) {
        // 密码规则：长度至少为8，包含大写字母、小写字母、数字、特殊字符，无重复字符
        if (password.length() < 8) return false;
 
        boolean hasUpper = false, hasLower = false, hasDigit = false, hasSpecial = false;
        char[] chars = password.toCharArray();
        for (char c : chars) {
            if (Character.isUpperCase(c)) hasUpper = true;
            else if (Character.isLowerCase(c)) hasLower = true;
            else if (Character.isDigit(c)) hasDigit = true;
            else if (!isSafe(c)) hasSpecial = true;
        }
 
        return hasUpper && hasLower && hasDigit && hasSpecial;
    }
 
    private static boolean isSafe(char c) {
        // 这里定义的特殊字符集可以根据实际需求进行调整
        return "!@#$%^&*()_+=[]{}|\\;':\",./<>?".indexOf(c) >= 0;
    }
}

JavaScript:

const readline = require('readline');
const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout
});
 
rl.question('Enter the password: ', (password) => {
    rl.close();
    console.log(isValidPassword(password) ? "YES" : "NO");
});
 
function isValidPassword(password) {
    // 密码规则：长度至少为8，包含大写字母、小写字母、数字、特殊字符，无重复字符
    if (password.length < 8) return false;
 
    let hasUpper = false, hasLower = false, hasDigit = false, hasSpecial = false;
    for (let i = 0; i < password.length; i++) {
        const c = password[i];
        if (/[A-Z]/.test(c)) hasUpper = true;
        else if (/[a-z]/.test(c)) hasLower = true;
        else if (/[0-9]/.test(c)) hasDigit = true;
        else if (!isSafe(c)) hasSpecial = true;
    }
 
    return hasUpper && hasLower && hasDigit && hasSpecial;
}
 
function isSafe(c) {
    // 这里定义的特殊字符集可以根据实际需求进行调整
    return "!@#$%^&*()_+=[]{}|\\;':\",./<>?".includes(c);
}

Python:

def is_valid_password(password):
    # 密码规则：长度至少为8，包含大写字母、小写字母、数字、特殊字符，无重复字符
    if len(password) < 8:
        return False
 
    has_upper = False
    has_lower = False
    has_digit = False
    has_special = False
    for c in password: