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12. Integer to Roman
Roman numerals are represented by seven different symbols: I, V, X, L, C, D and M. For example, two is written as II in Roman numeral, just two one's ...
分类:其他好文   时间:2019-08-24 10:00:29    阅读次数:83
461. Hamming Distance - Easy
The Hamming distance between two integers is the number of positions at which the corresponding bits are different. Given two integers x and y, calcul ...
分类:其他好文   时间:2019-08-24 09:50:42    阅读次数:94
477. Total Hamming Distance - Medium
The Hamming distance between two integers is the number of positions at which the corresponding bits are different. Now your job is to find the total ...
分类:其他好文   时间:2019-08-24 09:16:24    阅读次数:73
centos部署单机spark大数据环境(一)--【安装mysql】
最近在工作上,需要在centos上面装spark大数据环境,特此记录一下单机spark部署步骤: 一、Centos7安装mysql 1、官网下载mysql-5.5.61-linux-glibc2.12-x86_64.tar.gz安装包 (使用在线安装,受网络影响,推荐离线安装) 下载地址:https ...
分类:数据库   时间:2019-08-23 19:32:55    阅读次数:154
[GraphQL] Query GraphQL Interface Types in GraphQL Playground
Interfaces are similar to Unions in that they provide a mechanism for dealing with different types of data. However, an interface is more suited for d ...
分类:其他好文   时间:2019-08-20 19:07:28    阅读次数:102
[Dart] final vs const
If we attempt to reset 'final' to a different value, we will get an error. The difference in practice between const and final is you use final when ce ...
分类:其他好文   时间:2019-08-19 21:03:50    阅读次数:75
曹工杂谈:Java 类加载还会死锁?这是什么情况?
一、前言 今天事不是很多,正好在Java交流群里,看到一个比较有意思的问题,于是花了点时间研究了一下,这里做个简单的分享。 先贴一份测试代码,大家可以先猜测一下,执行结果会是怎样的: 不知道,你猜对了没有呢,实际的执行结果会是下面这样的: 二、原因分析 这里,一开始大家分析的是,和new有关系;但下 ...
分类:编程语言   时间:2019-08-19 19:02:15    阅读次数:88
Leetcode solution 772: Basic Calculator III
Problem Statement Implement a basic calculator to evaluate a simple expression string. Implement a basic calculator to evaluate a simple expression st ...
分类:其他好文   时间:2019-08-19 13:17:04    阅读次数:67
LeetCode-13.Roman to Integer
Roman numerals are represented by seven different symbols: I, V, X, L, C, D and M. For example, two is written as II in Roman numeral, just two one's ...
分类:其他好文   时间:2019-08-05 15:45:05    阅读次数:87
2018焦作网络赛G-Give Candies
G: Give Candies 题目描述 There are N children in kindergarten. Miss Li bought them N candies。To make the process more interesting, Miss Li comes up with t ...
分类:其他好文   时间:2019-08-03 11:05:25    阅读次数:95
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