| 题目链接 | 3168. 候诊室中的最少椅子数 |
|---|---|
| 思路 | 简单模拟 |
| 题解链接 | Wiki |
| 关键点 | 无 |
| 时间复杂度 | \(O(n)\) |
| 空间复杂度 | \(O(1)\) |
代码实现：
class Solution:
def minimumChairs(self, s: str) -> int:
answer = 0
remain = 0
for ch in s:
if ch == "E":
if remain:
remain -= 1
else:
answer += 1
else:
remain += 1
return answer