zero201801031535432
zero201801031535432
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题解 | #设计LRU缓存结构#
# # lru design # @param operators int整型二维数组 the ops # @param k int整型 the k # @return int整型一维数组 # from collections import namedtuple from threading im...
2021-08-02
0
256
题解 | #获得积分最多的人(二)#
select u.id, u.name, sum(g.grade_num)FROM grade_info as g join user as uon g.user_id = u.idgroup by g.user_id HAVING sum(g.grade_num) =(select s...
2021-08-02
0
271
题解 | #用两个栈实现队列#
class Solution: def __init__(self): self.stack1 = []  ...
2021-07-22
0
258