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Given an array nums and a value val, remove all instances of that value in-place and return the new length. Do not allocate extra space for another ar 阅读全文
posted @ 2020-07-20 22:00
Schwifty
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Given a binary tree, you need to compute the length of the diameter of the tree. The diameter of a binary tree is the length of the longest path betwe 阅读全文
posted @ 2020-07-20 10:45
Schwifty
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Given a tree (i.e. a connected, undirected graph that has no cycles) consisting of n nodes numbered from 0 to n - 1 and exactly n - 1 edges. The root 阅读全文
posted @ 2020-07-20 06:50
Schwifty
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Given numBottles full water bottles, you can exchange numExchange empty water bottles for one full water bottle. The operation of drinking a full wate 阅读全文
posted @ 2020-07-20 01:02
Schwifty
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