Python里面有3大数据结构:列表,字典和集合.字典是常用的数据结构,里面有一些重要的技巧用法,我把这些都整理到一起,熟练掌握这些技巧之后,对自己的功力大有帮助.1.字典的排序:用万金油sorted()函数举一个简单的例子my_dict={"cc":100,"aa":200,"bb":10}print(sorted(my_dict.it
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编程语言 时间:
2020-11-27 11:11:14
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8
You are given two non-empty linked lists representing two non-negative integers. The digits are stored in reverse order, and each of their nodes conta ...
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其他好文 时间:
2020-11-26 15:14:07
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5
Write an efficient algorithm that searches for a value in an m x n matrix. This matrix has the following properties: Integers in each row are sorted i ...
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其他好文 时间:
2020-11-25 12:59:50
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14
startWith 在订阅的时候插入发送事件,后加入的先发送。完成事件发送时不会插入。 let ob = PublishSubject<String>() ob.startWith("插入1").startWith("插入2").subscribe(onNext: { element in prin ...
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编程语言 时间:
2020-11-25 12:35:08
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3
Github使用记录 配置Git $ ssh-keygen -t rsa -C "your_email@youremail.com" 改为自己的name和地址,继续回车,默认路径和密码,继续回车,生成.ssh,打开id_rsa.pub,复制key到github的setting中。 $ ssh -T ...
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其他好文 时间:
2020-11-25 12:05:08
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7
NGINX and the "Power of Two Choices" Load-Balancing Algorithm - NGINX https://www.nginx.com/blog/nginx-power-of-two-choices-load-balancing-algorithm/ ...
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其他好文 时间:
2020-11-23 11:48:43
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4
Given two sorted arrays nums1 and nums2 of size m and n respectively, return the median of the two sorted arrays. The overall run time complexity shou ...
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编程语言 时间:
2020-11-21 12:37:58
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15
You are given a perfect binary tree where all leaves are on the same level, and every parent has two children. The binary tree has the following defin ...
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其他好文 时间:
2020-11-20 12:00:39
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9
#内置函数:print , sum, max , min , pow, sorted#数值操作print(sum([1, 2, 3])) #6print(max([2, 3, 1])) #3print(min([1, 2, 3])) #1print(abs(-2)) #2 abs绝对值print(r ...
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编程语言 时间:
2020-11-13 13:22:06
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37
数据结构:集合,线性结构,树形结构,图形结构 集合:纯粹的集合 线性结构:一对一 数组 树形结构:一对多 菜单/文件夹/树形控件 图形结构:多对多,地图/拓扑图/物流 常见数据结构: Array/ArrayList/List/LinkedList/Queue/Stack/HastSet/Sorted ...