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Go 是一种十分适合 Web 开发的语言，语法简单并且容易上手，同时内置go这个并发的神器语法，使得我们可以轻易的开发一些多并发的项目，用在并发需求数量巨大的服务端是再合适不过了。

Problem

LeetCode 97. Interleaving String

Difficulty : Hard

Given s1, s2, s3, find whether s3 is formed by the interleaving of s1 and s2.

Example 1:

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Input: s1 = "aabcc", s2 = "dbbca", s3 = "aadbbcbcac"
Output: true

Example 2:

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Input: s1 = "aabcc", s2 = "dbbca", s3 = "aadbbbaccc"
Output: false

Problem

LeetCode 72. Edit Distance

Difficulty : Hard

Given two words word1 and word2, find the minimum number of operations required to convert word1 to word2.

You have the following 3 operations permitted on a word:

1. Insert a character
2. Delete a character
3. Replace a character

这次来实现一个简单的评论应用，主要使用到 Android 中的存储、数据库的操作以及相册、通讯录数据的读取。

Problem

LeetCode 51. N-Queens

Difficulty : Hard

The n-queens puzzle is the problem of placing n queens on an n×n chessboard such that no two queens attack each other.

Given an integer n, return all distinct solutions to the n-queens puzzle.

Each solution contains a distinct board configuration of the n-queens’ placement, where 'Q' and '.' both indicate a queen and an empty space respectively.

上个星期的的 Web 安全技术课上讲了 DES 算法的具体算法，本文来说明一下 DES 算法的具体流程，以及使用 C 语言和 Go 语言实现 DES 算法。🎉

🚀 代码: Github

Problem

LeetCode 57. Insert Interval

Difficulty : Hard

Given a set of non-overlapping intervals, insert a new interval into the intervals (merge if necessary).

You may assume that the intervals were initially sorted according to their start times.

掌握了一些安卓的基本用法，这次来看看四大部件中的广播以及通知还有桌面小部件的使用