题解 | #密码验证合格程序#

用python集合挺方便的

def get_ans(s):
    return 'OK' if (len(s)>8 and three_types(s) and sub_str(s)) else 'NG'

def three_types(s):
    mark=set()
    for i in s:
        if i.islower(): mark.add('lower')
        elif i.isupper(): mark.add('upper')
        elif i.isnumeric(): mark.add('numeric')
        elif i!=' ' or i!='\n': mark.add('else')
    return len(mark)>=3

def sub_str(s):
    mark=set()
    for i in range(len(s)-3):
        if s[i:i+3] not in mark:
            mark.add(s[i:i+3])
        else: return False
    return True

if __name__=='__main__':
    import sys
    lines = []
    while True:
        line = sys.stdin.readline().strip()
        if line == "":
            break
        lines.append(line)
    for item in lines:
        print(get_ans(item))