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原创实战独立开发包含微博、微信、抖音的大型Android APP（二）

开头目前该软件DEMO已经开发完成，想体验该软件的，可以去蒲公英https://www.pgyer.com/xK5X进行下载尝试。如果遇到问题欢迎询问，如果有愿意商业合作开发的也可以商谈。好了下面该说说当用户完成登录注册后进入主页，主页该怎么制作。一、任务分析既然到了主页，我们就要想想整个APP需要分哪几个模块，首先已经说了是包含微博、微信、抖音的APP，当然要包括微博模块、即时通讯模块、抖音模块。然后用户的一些个人设置比如修改头像、修改昵称、修改密码等。二、具有制作主页用一个Activ

2020-08-20 17:01:14 399 1

原创实战独立开发包含微博、微信、抖音的大型Android APP（一）

开头现在要说最火的Android软件无非是微博、微信和抖音，但这三个软件是相互独立的，能不能自己实现一个androidApp同时。答案是可以的，而且个人实现并不困难。这里我个人就实现了一个三者主要功能合一的app。话不多说先上一段演示视频。大作业如果觉得不错的同学，想体验该软件的，可以去蒲公英https://www.pgyer.com/xK5X进行下载尝试。如果遇到问题欢迎询问，如果有老板的也可以商谈。好了下面该说说怎么写一个这样的APP了。一、任务...

2020-08-10 16:11:39 753 1

原创 1076. Forwards on Weibo (30)

Weibo is known as the Chinese version of Twitter. One user on Weibo may have many followers, and may follow many other users as well. Hence a social network is formed with followers relations. When a

2018-02-01 09:47:17 239

原创 1115. Counting Nodes in a BST (30)

A Binary Search Tree (BST) is recursively defined as a binary tree which has the following properties:The left subtree of a node contains only nodes with keys less than or equal to the node's ke

2018-01-31 11:21:41 213

原创 1086. Tree Traversals Again (25)

An inorder binary tree traversal can be implemented in a non-recursive way with a stack. For example, suppose that when a 6-node binary tree (with the keys numbered from 1 to 6) is traversed, the stac

2018-01-31 09:42:45 165

原创 1020. Tree Traversals (25)

Suppose that all the keys in a binary tree are distinct positive integers. Given the postorder and inorder traversal sequences, you are supposed to output the level order traversal sequence of the cor

2018-01-31 09:14:00 212

原创 1064. Complete Binary Search Tree (30)

A Binary Search Tree (BST) is recursively defined as a binary tree which has the following properties:The left subtree of a node contains only nodes with keys less than the node's key.The righ

2018-01-25 15:35:01 204

原创 1099. Build A Binary Search Tree (30)

A Binary Search Tree (BST) is recursively defined as a binary tree which has the following properties:The left subtree of a node contains only nodes with keys less than the node's key.The right

2018-01-25 15:14:14 228

原创 1094. The Largest Generation (25)

A family hierarchy is usually presented by a pedigree tree where all the nodes on the same level belong to the same generation. Your task is to find the generation with the largest population.Inpu

2018-01-25 09:57:10 175

原创 1079. Total Sales of Supply Chain (25)

A supply chain is a network of retailers（零售商）, distributors（经销商）, and suppliers（供应商）-- everyone involved in moving a product from supplier to customer.Starting from one root supplier, everyone on

2018-01-24 09:47:06 175

原创 1090. Highest Price in Supply Chain (25)

A supply chain is a network of retailers（零售商）, distributors（经销商）, and suppliers（供应商）-- everyone involved in moving a product from supplier to customer.Starting from one root supplier, everyone on

2018-01-24 09:25:41 188

转载 1118. Birds in Forest (25)

Some scientists took pictures of thousands of birds in a forest. Assume that all the birds appear in the same picture belong to the same tree. You are supposed to help the scientists to count the maxi

2018-01-23 16:22:40 142

原创 1107. Social Clusters (30)

When register on a social network, you are always asked to specify your hobbies in order to find some potential friends with the same hobbies. A "social cluster" is a set of people who have some of th

2018-01-23 15:14:52 155

原创 1032. Sharing (25)

To store English words, one method is to use linked lists and store a word letter by letter. To save some space, we may let the words share the same sublist if they share the same suffix. For example,

2018-01-23 09:48:18 146

原创 1052. Linked List Sorting (25)

A linked list consists of a series of structures, which are not necessarily adjacent in memory. We assume that each structure contains an integer key and a Next pointer to the next structure. Now give

2018-01-23 09:16:42 142

原创 1074. Reversing Linked List (25)

Given a constant K and a singly linked list L, you are supposed to reverse the links of every K elements on L. For example, given L being 1→2→3→4→5→6, if K = 3, then you must output 3→2→1→6→5→4; if K

2018-01-23 08:52:09 117

原创 1097. Deduplication on a Linked List (25)

Given a singly linked list L with integer keys, you are supposed to remove the nodes with duplicated absolute values of the keys. That is, for each value K, only the first node of which the value or a

2018-01-22 15:03:15 239

原创 1133. Splitting A Linked List (25)

Given a singly linked list, you are supposed to rearrange its elements so that all the negative values appear before all of the non-negatives, and all the values in [0, K] appear before all those grea

2018-01-22 14:18:25 148

原创 1137. Final Grading (25)

For a student taking the online course "Data Structures" on China University MOOC (http://www.icourse163.org/), to be qualified for a certificate, he/she must first obtain no less than 200 points from

2018-01-22 09:10:21 217

原创 1125. Chain the Ropes (25)

Given some segments of rope, you are supposed to chain them into one rope. Each time you may only fold two segments into loops and chain them into one piece, as shown by the figure. The resulting chai

2018-01-22 08:16:27 149

原创 1113. Integer Set Partition (25)

Given a set of N (> 1) positive integers, you are supposed to partition them into two disjoint sets A1 and A2 of n1 and n2numbers, respectively. Let S1 and S2 denote the sums of all the numbers in A

2018-01-22 08:10:40 137

原创 1136. A Delayed Palindrome (20)

Consider a positive integer N written in standard notation with k+1 digits ai as ak...a1a0 with 0 i < 10 for all i and ak > 0. Then N is palindromic if and only if ai = ak-i for all i. Zero is writt

2018-01-19 15:55:58 158

原创 1105. Spiral Matrix (25)

This time your job is to fill a sequence of N positive integers into a spiral matrix in non-increasing order. A spiral matrix is filled in from the first element at the upper-left corner, then move in

2018-01-19 10:01:59 133

原创 1046. Shortest Distance (20)

The task is really simple: given N exits on a highway which forms a simple cycle, you are supposed to tell the shortest distance between any pair of exits.Input Specification:Each input file contains

2018-01-19 09:31:27 135

原创 1065. A+B and C (64bit) (20)

Given three integers A, B and C in [-263, 263], you are supposed to tell whether A+B > C.Input Specification:The first line of the input gives the positive number of test cases, T (Output Specificatio

2018-01-19 08:57:51 155

原创 1134. Vertex Cover (25)

A vertex cover of a graph is a set of vertices such that each edge of the graph is incident to at least one vertex of the set. Now given a graph with several vertex sets, you are supposed to tell if e

2018-01-18 09:50:43 214

转载 1129. Recommendation System (25)

Recommendation system predicts the preference that a user would give to an item. Now you are asked to program a very simple recommendation system that rates the user's preference by the number of time

2018-01-18 09:36:07 315

原创 1121. Damn Single (25)

"Damn Single (单身狗)" is the Chinese nickname for someone who is being single. You are supposed to find those who are alone in a big party, so they can be taken care of.Input Specification:Each input fi

2018-01-18 09:02:11 135

原创 1120. Friend Numbers (20)

Two integers are called "friend numbers" if they share the same sum of their digits, and the sum is their "friend ID". For example, 123 and 51 are friend numbers since 1+2+3 = 5+1 = 6, and 6 is their

2018-01-18 08:24:03 137

原创 1112. Stucked Keyboard (20)

On a broken keyboard, some of the keys are always stucked. So when you type some sentences, the characters corresponding to those keys will appear repeatedly on screen for k times.Now given a resu

2018-01-17 10:05:28 132

原创 1071. Speech Patterns (25)

People often have a preference among synonyms of the same word. For example, some may prefer "the police", while others may prefer "the cops". Analyzing such patterns can help to narrow down a speaker

2018-01-17 09:19:04 133

原创 1100. Mars Numbers (20)

People on Mars count their numbers with base 13:Zero on Earth is called "tret" on Mars.The numbers 1 to 12 on Earch is called "jan, feb, mar, apr, may, jun, jly, aug, sep, oct, nov, dec" on Ma

2018-01-17 08:58:09 166

原创 1124. Raffle for Weibo Followers (20)

John got a full mark on PAT. He was so happy that he decided to hold a raffle（抽奖） for his followers on Weibo -- that is, he would select winners from every N followers who forwarded his post, and give

2018-01-17 08:46:52 147

原创 1015. Reversible Primes (20)

A reversible prime in any number system is a prime whose "reverse" in that number system is also a prime. For example in the decimal system 73 is a reversible prime because its reverse 37 is also a pr

2018-01-16 16:10:57 104

原创 1081. Rational Sum (20)

Given N rational numbers in the form "numerator/denominator", you are supposed to calculate their sum.Input Specification:Each input file contains one test case. Each case starts with a positi

2018-01-16 10:13:28 134

原创 1069. The Black Hole of Numbers (20)

For any 4-digit integer except the ones with all the digits being the same, if we sort the digits in non-increasing order first, and then in non-decreasing order, a new number can be obtained by takin

2018-01-16 09:13:48 141

原创 1104. Sum of Number Segments (20)

Given a sequence of positive numbers, a segment is defined to be a consecutive subsequence. For example, given the sequence {0.1, 0.2, 0.3, 0.4}, we have 10 segments: (0.1) (0.1, 0.2) (0.1, 0.2, 0.3)

2018-01-16 08:35:46 142

原创 1132. Cut Integer (20)

Cutting an integer means to cut a K digits long integer Z into two integers of (K/2) digits long integers A and B. For example, after cutting Z = 167334, we have A = 167 and B = 334. It is interesting

2018-01-16 08:22:08 242

原创 1093. Count PAT's (25)

The string APPAPT contains two PAT's as substrings. The first one is formed by the 2nd, the 4th, and the 6th characters, and the second one is formed by the 3rd, the 4th, and the 6th characters.No

2018-01-15 14:48:59 110

原创 1096. Consecutive Factors (20)

Among all the factors of a positive integer N, there may exist several consecutive numbers. For example, 630 can be factored as 3*5*6*7, where 5, 6, and 7 are the three consecutive numbers. Now given

2018-01-15 09:39:38 133

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