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38 报数
读题: 个人感觉这题的难点就是读题了,count-and-say,给出了前5个的例子 初始从1开始,读作“1个1”,即11 接着读11,读作“2个1”,即21 接着读21,读作“1个2,1个1”,即1211 接着读1211,读作“1个1,1个2,2个1”,即111221 如果能读明白题,就基本解得出 ...
分类:其他好文   时间:2019-11-09 09:49:56    阅读次数:113
38. 报数
题目描述: The count-and-say sequence is the sequence of integers beginning as follows:1, 11, 21, 1211, 111221, ... 1 is read off as"one 1"or 11.11 is read ...
分类:其他好文   时间:2019-11-02 17:33:40    阅读次数:78
38. Count and Say
The count-and-say sequence is the sequence of integers with the first five terms as following: 1 is read off as "one 1" or 11.11 is read off as "two 1 ...
分类:其他好文   时间:2019-10-19 20:30:16    阅读次数:105
Java 多态
多态:一个对象有多种形态 是方法的多态,和属性无关 有继承关系、重写方法、父类引用 指向 子类对象 静态方法不支持多态 举例, 有父类Dog,属性name="dog",普通方法say,静态方法move; 子类SDog,属性name="sdog",重写了普通方法say,重写了静态方法move,另外有自 ...
分类:编程语言   时间:2019-10-13 18:43:14    阅读次数:80
【LeetCode】38. Count and Say
Difficulty:easy More:【目录】LeetCode Java实现 Description https://leetcode.com/problems/count-and-say/ The count-and-say sequence is the sequence of intege ...
分类:其他好文   时间:2019-10-13 13:09:27    阅读次数:85
4 Socket代码实例
基本Socket例子 做了这么久的铺垫,是时候该与远方的她say hi啦 Server Client 先启动server端,再启动client端,看结果 此时一定要停下来,让学生自己写一遍! 循环收发数据 第一次接触就这么交待了,只说了一句话,感觉不够过瘾,如何实现更多的交互呢?简单,只需要让客户端 ...
分类:其他好文   时间:2019-10-12 11:18:51    阅读次数:98
golang ---Learn Concurrency
https://github.com/golang/go/wiki/LearnConcurrency 实例1: 输出: 可以看到只输出了4个world就退出了,因为main执行完say("hello")就退出了 修改如下: 输出: world完整输出了 ...
分类:其他好文   时间:2019-10-10 11:06:41    阅读次数:70
[Mathematics][MIT 18.03] Detailed Explanation of the Frequency Problems in Second-Order Differential Equation of Oscillation System
Well, to begin with, I'd like to say thank you to MIT open courses twice. It's their generosity that gives me the priviledge to enjoy the most outstan ...
分类:其他好文   时间:2019-10-05 22:27:34    阅读次数:131
[LeetCode] 916. Word Subsets 单词子集合
We are given two arrays and of words. Each word is a string of lowercase letters. Now, say that?word is a subset of word if every letter in occurs in ...
分类:其他好文   时间:2019-10-05 00:40:31    阅读次数:110
[Mathematics][MIT 18.03] Proof of a Theory about the Solution to Second-order Linear Homogeneous Differential Equation
Edit: I suddenly found that this theorem is called Abel Identity. And the proof here is exactly the same as what he did. At first, I'd like to say tha ...
分类:其他好文   时间:2019-10-04 21:03:48    阅读次数:98
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