LeetCode Weekly Contest 18a是LeetCode举办的第二十二场正式周赛，共3道题目，比赛时长1.5小时。
比赛链接：https://leetcode.com/contest/leetcode-weekly-contest-18a/
题解列表：
归档 2017年2月5日
LeetCode Weekly Contest 18a解题报告
[LeetCode]IPO
作者是
发布于
在
LeetCode.
题目描述：
Suppose LeetCode will start its IPO soon. In order to sell a good price of its shares to Venture Capital, LeetCode would like to work on some projects to increase its capital before the IPO. Since ...
[LeetCode]Most Frequent Subtree Sum
作者是
发布于
在
LeetCode.
题目描述：
LeetCode 508. Most Frequent Subtree Sum
Given the root of a tree, you are asked to find the most frequent subtree sum. The subtree sum of a node is defined as the sum of all the node values formed ...
[LeetCode]Keyboard Row
作者是
发布于
在
LeetCode.
题目描述：
Given a List of words, return the words that can be typed using letters of alphabet on only one row's of American keyboard like the image below.
Example 1:
Input: ["Hello", "Alaska", "Dad", "Peace"] Output ...