题目描述：
LeetCode 635. Design Log Storage System
You are given several logs that each log contains a unique id and timestamp. Timestamp is a string that has the following format: Year:Month:Day:Hour:Minute:Second, for example, 2017:01 ...
归档 2017
[LeetCode]Design Log Storage System
[LeetCode]Sum of Square Numbers
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题目描述：
LeetCode 633. Sum of Square Numbers
Given a non-negative integer c, your task is to decide whether there're two integers a and b such that a2 + b2 = c.
Example 1:
Input: 5 Output: True Explanation: 1 * 1 ...
LeetCode Weekly Contest 38解题报告
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LeetCode Weekly Contest 38是LeetCode举办的第四十三场正式周赛，共4道题目，比赛时长1.5小时。
比赛链接：https://leetcode.com/contest/leetcode-weekly-contest-38/
题解列表：
LeetCode 628. Maximum Product of Three Numbers
LeetCode 630. Course Schedule III
[LeetCode]Design Excel Sum Formula
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题目描述：
LeetCode 631. Design Excel Sum Formula
Your task is to design the basic function of Excel and implement the function of sum formula. Specifically, you need to implement the following functions:
Excel(int H, char W): This is the ...
[LeetCode]K Inverse Pairs Array
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题目描述：
LeetCode 629. K Inverse Pairs Array
Given two integers n and k, find how many different arrays consist of numbers from 1 to n such that there are exactly k inverse pairs.
We define an inverse pair as following ...