题解 | #密码验证合格程序#

正则表达式解法：

import re
while True:
    try:
        s=input()
        count,flag=0,True
        if  re.findall("[a-zA-Z]",s):
            count+=1
            if not (s.isupper() or s.islower()):
                count+=1
        if re.findall("\d",s):
            count+=1
        if re.findall("[^0-9a-zA-Z \n]",s):
            count+=1
        for i in range(len(s)-3):
            for j in range(i+3,len(s)-3):
                if s[i:i+3]==s[j:j+3]:
                    flag=False
                    break
        if len(s)>8 and flag and count>=3:
            print("OK")
        else:
            print("NG")
    except:
        break