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原创微信小程序学习报告

微信小程序学习报告1.申请账号点击 https://mp.weixin.qq.com/wxopen/waregister?action=step1 根据指引填写信息和提交相应的资料 2.安装开发模板下载开发工具小程序配置 app.json app.json 是对当前小程序的全局配置，包括了小程序的所有页面路径、界面表现、网络超...

2018-04-15 16:03:46 13784

原创系统设计与分析作业2

1、简单题（1）简述瀑布模型、增量模型、螺旋模型（含原型方法）的优缺点瀑布模型优点： a.为项目提供了按阶段划分的检查点。 b.当前一阶段完成后，您只需要去关注后续阶段。 c.可在迭代模型中应用瀑布模型。 d.它提供了一...

2018-03-22 17:49:52 349

原创系统分析与设计作业1

1、简单题1) 软件工程的定义软件工程：(1)将系统化、规范化、可度量的方法应用与软件的开发、运行和维护的过程，即将工程化应用于软件中。(2)对(1)中所述方法的研究。——IEEE[IEE93] 软件工程：是指导计算机软件开发和维护的工程学科。采用工程的概念、原理、技术和方法来开发与维护软件，把经过实践考验而证明正确的管理技术和当前能够得到的最好的...

2018-03-13 22:06:56 315

原创 Course Schedule || Leetcode

There are a total of n courses you have to take, labeled from 0 to n - 1.Some courses may have prerequisites, for example to take course 0 you have to first take course 1, which is expressed as a

2018-01-11 22:46:21 177

原创 Course Schedule Leetcode

There are a total of n courses you have to take, labeled from 0 to n - 1.Some courses may have prerequisites, for example to take course 0 you have to first take course 1, which is expressed as

2018-01-11 21:35:54 161

原创 Group Anagrams Leetcode

Given an array of strings, group anagrams together.For example, given: ["eat", "tea", "tan", "ate", "nat", "bat"],Return:[ ["ate", "eat","tea"], ["nat","tan"], ["bat"]]Note: All

2018-01-01 13:26:32 166

原创 8.8

In the EXACT 4 SAT problem, the input is a set of clauses, each of which is a disjunction of exactly four literals, and such that each variable occurs at most once in each clause. The goal is to find

2017-12-31 20:32:47 168

原创 Rotate Image -Leetcode

You are given an n x n 2D matrix representing an image.Rotate the image by 90 degrees (clockwise).Note:You have to rotate the image in-place, which means you have to modify the input 2D matr

2017-12-18 15:57:17 179

原创 Permutations II -Leetcode

Given a collection of numbers that might contain duplicates, return all possible unique permutations.For example,[1,1,2] have the following unique permutations:[ [1,1,2], [1,2,1], [2,1

2017-12-18 15:19:03 172

原创 Permutations -Leetcode

Given a collection of distinct numbers, return all possible permutations.For example,[1,2,3] have the following permutations:[ [1,2,3], [1,3,2], [2,1,3], [2,3,1], [3,1,2], [3,2,1

2017-12-17 23:09:05 202

原创 Multiply Strings

Given two non-negative integers num1 and num2 represented as strings, return the product of num1 andnum2.Note:The length of both num1 and num2 is Both num1 and num2 contains only digits0

2017-12-10 23:06:08 149

原创 First Missing Positive Leetcode

Given an unsorted integer array, find the first missing positive integer.For example,Given [1,2,0] return 3,and [3,4,-1,1] return 2.Your algorithm should run in O(n) time and uses constant

2017-11-26 23:13:25 157

原创 3Sum Closest Leetcode

Given an array S of n integers, find three integers inS such that the sum is closest to a given number, target. Return the sum of the three integers. You may assume that each input would have exactl

2017-11-19 23:35:31 191

原创 say and count Leetcode

The count-and-say sequence is the sequence of integers with the first five terms as following:1. 12. 113. 214. 12115. 1112211 is read off as "one 1" or11.11 is rea

2017-11-13 20:33:43 253

原创 Valid Sudoku —Leetcode

Determine if a Sudoku is valid, according to: Sudoku Puzzles - The Rules.The Sudoku board could be partially filled, where empty cells are filled with the character'.'.A partially fill

2017-11-13 20:12:12 164

原创 Search Insert Position Leetcod

Given a sorted array and a target value, return the index if the target is found. If not, return the index where it would be if it were inserted in order.You may assume no duplicates in the ar

2017-11-12 23:19:22 154

原创 3Sum -Leetcode

Given an array S of n integers, are there elements a, b, c in S such that a + b + c = 0? Find all unique triplets in the array which gives the sum of zero.Note: The solution set must not contain

2017-10-15 22:18:09 198

原创 Substring with Concatenation of All Words-Leetcode

You are given a string, s, and a list of words, words, that are all of the same length. Find all starting indices of substring(s) in s that is a concatenation of each word in words exactly once and

2017-10-15 21:53:45 170

Given an array S of n integers, find three integers in S such that the sum is closest to a given number, target. Return the sum of the three integers. You may assume that each input would have exactly

2017-10-02 00:27:47 196

原创 Roman to Integer-Leetcode

Given a roman numeral, convert it to an integer.Input is guaranteed to be within the range from 1 to 3999.

2017-09-12 16:59:46 241

原创 Container With Most Water-Leetcode

Question :Given n non-negative integers a1, a2, ..., an, where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two endpoints of line i is at (i, ai)

2017-09-11 11:39:39 222

原创 TwoSum-Leetcode

Question :Given an array of integers, return indices of the two numbers such that they add up to a specific target.You may assume that each input would have exactly one solution, and you may not u

2017-09-10 11:34:23 166

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