leetcode-27双周赛-1461-检查一个字符串是否包含所有长度为K的二进制子串
题目描述:
提交:
class Solution: def hasAllCodes(self, s: str, k: int) -> bool: k_list = set() if k > len(s): return False for i in range(len(s) - k + 1): if s[i:i+k] not in k_list: k_list.add(s[i:i+k]) return len(k_list) == 2**k