题解 | 密码验证合格程序

def str_check() -> str:
    """
    param str1:
    return: str
    """
    import sys
    res = []

    for str_input in sys.stdin:
        str_input = str_input.strip()  # 去除换行符
        if not str_input:  # 如果输入空行，结束循环
            break

        if len(str_input) <= 8:
            res.append("NG")
            continue

        str_count = {"upper": 0, "lower": 0, "num": 0, "other": 0}
        has_repeat = False

        for i in range(len(str_input)):
            cur_str = str_input[i]
            if cur_str.isdigit():
                str_count["num"] = 1
            elif cur_str.isalpha():
                if cur_str.isupper():
                    str_count["upper"] = 1
                else:
                    str_count["lower"] = 1
            else:
                str_count["other"] = 1

            # 检查重复子串,i的前三个字符串是否在i后面的字符串里
            if i >= 3:
                if str_input[i - 3 : i] in str_input[i:]:
                    has_repeat = True
                    break

        if has_repeat:
            res.append("NG")
        elif sum(str_count.values()) < 3:
            res.append("NG")
        else:
            res.append("OK")

    print("\n".join(res))


str_check()