11 2017 档案
摘要：238. Product of Array Except SelfGiven an array of n integers where n > 1, nums, return an array output such that output[i] is equal to the product of...
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摘要：442. Find All Duplicates in an ArrayGiven an array of integers, 1 ≤ a[i] ≤ n (n = size of array), some elements appear twice and others appear once.Fi...
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摘要：100. Same TreeGiven two binary trees, write a function to check if they are the same or not.Two binary trees are considered the same if they are struc...
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摘要：530. Minimum Absolute Difference in BSTGiven a binary search tree with non-negative values, find the minimum absolute difference between values of any...
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摘要：728. Self Dividing NumbersA self-dividing number is a number that is divisible by every digit it contains.For example, 128 is a self-dividing number b...
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摘要：1.安装可以去官网去下载：官网也可以去：CSDN下载链接安装的过程中附加选项可以都选，会安装wireshark，solarwinds等等，如果已经安装，可以根据提示取消。2.安装ios安装完抽后，打开软件会出 网络选择，取消就行。然后就需要安装ios，可以去这个网址下载：ios下载具体的安装步骤：i...
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摘要：387. First Unique Character in a StringGiven a string, find the first non-repeating character in it and return it's index. If it doesn't exist, return...
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摘要：前一段时间电脑上的虚拟机打不开了，点击开机就一直黑屏，挂起时能够看到显示，但是开机就黑屏。百度了之后找到了解决方案：（我是第一种方案就解决了）（据说可能是wegame的锅。。。）方法1：命令行窗口—输入 netsh winsock reset，然后重启计算机。方法2：VM->Settings->Ha...
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摘要：167. Two Sum II - Input array is sortedGiven an array of integers that is already sorted in ascending order, find two numbers such that they add up to...
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摘要：leetcode-169. Majority Element Given an array of size n, find the majority element. The majority element is the element that appears more tha...
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摘要：455. Assign CookiesAssume you are an awesome parent and want to give your children some cookies. But, you should give each child at most one cookie. E...
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摘要：Python-函数其他切片对于list和tuple来说，可能有事需要获得他们的子串，而Java等都提供了类似subString()的方法来获取子串，而对于Python来说则有一种方法叫 切片 例如： L = ['michel','Sarah','Bob','Tom'] 想要获取L的前...
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摘要：Python学习笔记说明所有的Python学习笔记都是我在学习廖雪峰的官方网站中的Python教程过程中记录下来的，所以大部分内容会与廖大大教程中的内容相重合，我只是想自己再写一遍，加深印象，作为记录，以便日后复习。 如果大家想学习Python，可以去廖大大的网站。 最后感谢廖大大的...
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摘要：Python-函数函数定义python中的定义函数使用 def ，依次写出函数名，参数和冒号: ，在缩进块中写函数体，return返回值 例：def my_abs(x): if x >= 0: return x else: return -xp...
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摘要：Python-dict 和 setdictPython内置了字典：dict的支持，dict全称dictionary，在其他语言中也称为map，使用键-值（key-value）存储 定义格式：>>>dic = {'Miachel':95,'Bob':75,'Tracy':85}>>>d...
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摘要：Python学习笔记-1ListPython内置的一种数据类型是列表：list。list是一种有序的集合，可以随时添加和删除其中的元素。 定义格式：classmates = ['ichel','Bob','Tom']可以用 len() 来获取 list 的长度>>>len(class...
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摘要：563. Binary Tree TiltGiven a binary tree, return the tilt of the whole tree.The tilt of a tree node is defined as the absolute difference between the ...
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摘要：404. Sum of Left LeavesFind the sum of all left leaves in a given binary tree.Example: 3 / \ 9 20 / \ 15 7There are two left leaves in ...
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摘要：383. Ransom NoteGiven an arbitrary ransom note string and another string containing letters from all the magazines, write a function that will return ...
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摘要：349. Intersection of Two ArraysGiven two arrays, write a function to compute their intersection.Example:Given nums1 = [1, 2, 2, 1], nums2 = [2, 2], re...
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摘要：453. Minimum Moves to Equal Array ElementsGiven a non-empty integer array of size n, find the minimum number of moves required to make all array eleme...
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摘要：697. Degree of an ArrayGiven a non-empty array of non-negative integers nums, the degree of this array is defined as the maximum frequency of any one ...
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摘要：598. Range Addition IIGiven an m * n matrix M initialized with all 0's and several update operations.Operations are represented by a 2D array, and eac...
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摘要：492. Construct the RectangleFor a web developer, it is very important to know how to design a web page's size. So, given a specific rectangular web pa...
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摘要：1.仅对本类可见-private2.对所有类可见 -public3.对本包和所有子类可见 -protected4.对本包可见-default（不需要修饰符） PrivateDefaultProtectedPublic同一个类1111同一个包的子类0111同一个包的非子类0111不同包的子类0011不...
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摘要：本文转自http://www.jb51.net/article/41430.htm是我看过的介绍这些关键字比较好的文章了，所以分享一下—————————————————————————————————————————————————————————————————————————————static...
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摘要：538. Convert BST to Greater TreeGiven a Binary Search Tree (BST), convert it to a Greater Tree such that every key of the original BST is changed to t...
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摘要：606. Construct String from Binary TreeYou need to construct a string consists of parenthesis and integers from a binary tree with the preorder travers...
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摘要：283. Move ZeroesGiven an array nums, write a function to move all 0's to the end of it while maintaining the relative order of the non-zero elements.F...
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摘要：653. Two Sum IV - Input is a BSTGiven a Binary Search Tree and a target number, return true if there exist two elements in the BST such that their sum...
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摘要：389. Find the DifferencGiven two strings s and t which consist of only lowercase letters.String t is generated by random shuffling string s and then a...
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摘要：448. Find All Numbers Disappeared in an ArrayGiven an array of integers where 1 ≤ a[i] ≤ n (n = size of array), some elements appear twice and others ...
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摘要：696. Count Binary SubstringsGive a string s, count the number of non-empty (contiguous) substrings that have the same number of 0's and 1's, and all t...
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