Given two non-negative integersnum1andnum2represented as strings, return the product of...
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2020-11-22 43. Multiply Strings - Medium
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2020-11-22 2. Add Two NumbersMedium 97862459Add to ListShare You are given twonon-emptylinked lists representing two...
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感觉作者讲得很形象，而且容易记忆：
1、插入：上浮
2、删除操作：最后一个节点放到根节点处，新根节点递归下沉
3、建堆：最大堆的所有子树都是最大堆，因此可以自底向上做下沉
4、排序：使用操作（2），依次取出最大值最大堆（创建、删除、插入和堆排序）
关于最大堆 什么是最大堆和最小堆？最大（小）堆是指在树中，存在一个结点而且该结点有儿子结点，该结点的data域值都不小于（大于）其儿子结点的data域值，并且它是一个完全二叉...
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最大堆（创建、删除、插入和堆排序）关于最大堆 什么是最大堆和最小堆？最大（小）堆是指在树中，存在一个结点而且该结点有儿子结点，该结点的data域值都不小于（大于）其儿子结点的data域值，并且它是一个完全二叉...
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2020-05-19 474. Ones and Zeroes Medium
Given an array,strs, with strings consisting of only0sand1s. Also two integersmandn. No...
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2020-05-17 494. Target Sum MediumYou are given a list of non-negative integers, a1, a2, ..., an, and a target, S. Now yo...
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2020-05-11 646. Maximum Length of Pair Chain Medium
You are givennpairs of numbers. In every pair, the first number is always smaller than ...
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2020-05-10 91. Decode Ways Medium
A message containing letters fromA-Zis being encoded to numbers using the following map...
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2020-05-06 343. Integer Break Medium
Given a positive integern, break it into the sum ofat leasttwo positive integers and ma...
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2020-05-04 62. Unique Paths Medium
A robot is located at the top-left corner of amxngrid (marked 'Start' in the diagram be...
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2020-05-04 64. Minimum Path Sum Medium
Given amxngrid filled with non-negative numbers, find a path from top left to bottom ri...
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2020-05-03 213. House Robber II Medium
You are a professional robber planning to rob houses along a street. Each house has a c...
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2020-05-03 51. N-Queens Hard
Then-queens puzzle is the problem of placingnqueens on ann×nchessboard such that no two...
