python算法题--简单--文件夹操作日志搜集器

class Solution:

    def minOperations(self, logs: List[str]) -> int:

        result=0

        for i in range(0,len(logs)):

            if logs[i]=='../':

                if result>0:

                    result-=1

            elif logs[i]=='./':

                continue

            else:

                result+=1

        return result