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1001 A+B Format
1001 A+B Format (20分) Calculate a+b and output the sum in standard format -- that is, the digits must be separated into groups of three by commas (unl ...
分类:其他好文   时间:2020-04-09 16:44:40    阅读次数:77
DL in the field of CV
A shallow notes on Deep Learning in the field of Computer Vision based on the courses by Andrew Ng. ...
分类:其他好文   时间:2020-04-09 13:05:58    阅读次数:88
FarmCraft 树形dp
题目描述 In a village called Byteville, there are houses connected with N-1 roads. For each pair of houses, there is a unique way to get from one to anoth ...
分类:其他好文   时间:2020-04-07 18:17:31    阅读次数:69
PostgreSQL 自定义自动类型转换(CAST) integer_to_text
PostgreSQL是一个强类型数据库,因此你输入的变量、常量是什么类型,是强绑定的,例如 在调用操作符时,需要通过操作符边上的数据类型,选择对应的操作符。 在调用函数时,需要根据输入的类型,选择对应的函数。 如果类型不匹配,就会报操作符不存在,或者函数不存在的错误。 postgres=# sele ...
分类:数据库   时间:2020-04-06 17:49:51    阅读次数:464
[Leetcode] 136. Single Number
Given a non empty array of integers, every element appears twice except for one. Find that single one. Note: Your algorithm should have a linear runti ...
分类:其他好文   时间:2020-04-06 09:48:06    阅读次数:63
162. Find Peak Element
Problem : A peak element is an element that is greater than its neighbors. Given an input array nums, where nums[i] ≠ nums[i+1], find a peak element a ...
分类:其他好文   时间:2020-04-05 23:55:14    阅读次数:129
MQTT服务器(Broker) - mosquitto配置文件详解
常规配置 ================================================================= 默认监听器 基于证书的SSL / TLS支持 Pre shared key based SSL/TLS support 基于预共享密钥的SSL / TLS支持 ...
分类:其他好文   时间:2020-04-04 11:33:49    阅读次数:85
341. 扁平化嵌套列表迭代器
1 /** 2 * // This is the interface that allows for creating nested lists. 3 * // You should not implement it, or speculate about its implementation 4 ...
分类:其他好文   时间:2020-04-02 15:56:20    阅读次数:67
412. Fizz Buzz
Problem : Write a program that outputs the string representation of numbers from 1 to n. But for multiples of three it should output “Fizz” instead of ...
分类:其他好文   时间:2020-04-01 01:01:58    阅读次数:55
RDD的cache、persist、checkpoint的区别和StorageLevel存储级别划分
为了增强容错性和高可用,避免上游RDD被重复计算的大量时间开销,Spark RDD设计了包含多种存储级别的缓存和持久化机制,主要有三个概念:cache、persist、checkout。 1、存储级别介绍(StorageLevel) 存储级别以一个枚举类StorageLevel定义,分为以下几种: ...
分类:系统相关   时间:2020-03-30 12:43:50    阅读次数:102
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