【图解设计模式】Composite模式
能够使容器与内容具有一致性，创造出递归结构。
示例列出文件和文件夹的一览。
类图
Entry类12345678910111213141516171819public abstract class Entry { public abstract String getName();
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[LeetCode] Problem 792 - Number of Matching Subsequences
Given string S and a dictionary of words words, find the number of words[i] that is a subsequence of S.
ExampleInput:S = “abcde”words = [“a”, “bb”, “a
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[LeetCode] Problem 848 - Shifting Letters
We have a string S of lowercase letters, and an integer array shifts.
Call the shift of a letter, the next letter in the alphabet, (wrapping around so
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[LintCode] Problem 851 - Pour Water
Given an elevation map, heights[i] representing the height of the terrain at that index. The width at each index is 1. After V units of water fall at
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[LeetCode] Problem 773 - Sliding Puzzle
On a 2x3 board, there are 5 tiles represented by the integers 1 through 5, and an empty square represented by 0.
A move consists of choosing 0 and a 4
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[LeetCode] Problem 332 - Reconstruct Itinerary
Given a list of airline tickets represented by pairs of departure and arrival airports [from, to], reconstruct the itinerary in order. All of the tick
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[LeetCode] Problem 875 - Koko Eating Bananas
Koko loves to eat bananas. There are N piles of bananas, the i-th pile has piles[i] bananas. The guards have gone and will come back in H hours.
Kok
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【图解设计模式】Strategy模式
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Design Pattern
整体地替换算法的实现部分，能轻松地以不同的算法去解决同一个问题。
示例让电脑玩“猜拳”游戏。第一种策略是“如果这局猜拳获胜，那么下一局也出一样的手势”；另外一种策略是“根据上一局的手势从概率上计算出下一局的手势”。
类图
Hand类1234567891011121314151617181920212
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【图解设计模式】Bridge模式
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Design Pattern
在“类的功能层次结构”和“类的实现层次结构”之间搭建桥梁。
父类具有基本功能
在子类中增加新的功能
这种层次结构被称为“类的功能层次结构”。
父类通过声明抽象方法来定义接口（API）
子类通过实现具体方法来实现接口（API）
这种层次结构被称为“类的实现层次结构”。
示例显示一些东西。
类图
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各种生成实例的方法
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Java
new使用Java关键字new生成实例。可以像下面这样生成Something类的实例并将其保存在obj变量中。
1Something obj = new Something();
这时，类名（此处的Something）会出现在代码中。
clone使用clone方法，根据现有的实例复制出一个新的实例
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