Python | Leetcode Python题解之第387题字符串中的第一个唯一字符
题目: 题解: class Solution:def firstUniqChar(self, s: str) -> int:position dict()q collections.deque()n len(s)for i, ch in enumerate(s):if ch not in position:position[ch] iq.append((s[i], i))else:position[ch] -1while q and po…
2024-09-23