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原创 Sublime Text 3 c/c++编译平台搭建简介
Sublime Text 3是一个代码编辑器，也是HTML和散文先进的文本编辑器。它最初被设计为一个具有丰富扩展功能的Vim。 Sublime Text具有漂亮的用户界面和强大的功能，支持多种编程语言的语法高亮、拥有优秀的代码自动完成功能，还拥有代码片段（Snippet）的功能，可以将常用的代码片段保存起来，在需要时随时调用。支持 VIM 模式，可以使用Vim模式下的多数命令。同时支持Window...
2018-02-02 16:35:32
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原创 Sublime Text 3 主题设计与应用
sublime text 3 主题设计与应用作为编辑器之神，sublime之所以能受到大众的欢迎，就是因为其拥有优雅流畅的操作界面，此博客将介绍sublime配置使用主题以及自定义主题的具体方法1）下载使用主题插件sublime自带相当多的主题插件，其中下图第一条就是一个主题插件（此处仅做示范，并不推荐这个主题）：按下ctrl+shift+P调出package contro
2018-02-02 16:20:42
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原创 Ubuntu修改时区和更新时间
Ubuntu修改时区和更新时间一句命令即可将时间设置为东八区timedatectl set-timezone Asia/Shanghai
2021-08-02 16:53:10
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原创 UBUNTU18.04安装CUDA10.1
UBUNTU18.04安装CUDA10.1一、下载旧版本安装包二、安装cuda三、配置环境一、下载旧版本安装包https://developer.nvidia.com/cuda-toolkit-archive笔者选择了CUDA Toolkit 10.1 (Feb 2019), Online Documentation二、安装cuda1.进入下载好的文件夹sudo sh cuda_10.1.105_418.39_linux.run2.第一个不选择安装驱动3.安装完成三、配置环境1
2021-01-28 16:50:54
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转载 Linux替换清华源
Linux替换清华源1.备份原来的源文件2.替换源3.更新源和软件1.备份原来的源文件cd /etc/apt/sudo cp sources.list sources.list.bak2.替换源sudo gedit sources.list删除原来的所有内容，替换成适合版本的清华源。# 默认注释了源码镜像以提高 apt update 速度，如有需要可自行取消注释deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main re
2021-01-26 14:09:12
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原创 欧几里德与扩展欧几里德算法
欧几里德算法欧几里德算法又称辗转相除法，用于计算两个整数a,b的最大公约数。基本算法：设a = qb + r，其中a，b，q，r都是整数，则gcd(a, b) = gcd(b, r)，即gcd(a, b) = gcd(b, a % b)。算法的实现：int gcd(int a, int b){ return b ? gcd(b, a % b) : a;}...
2018-04-26 21:31:32
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原创 邻接表三种常见方法简介
邻接表是存图的一种很好的方式，在搜索算法中有较为广泛的应用。首先分清三种方法。1、vector：这是最容易理解的一种方法，使用比较广泛（一般像笔者这样的萌新使用较多）。优点：方便，代码简洁，容易理解。缺点：某些不怀好意的题可能会卡你时间，vector效率不高。2、链表：使用链表存图，优点：速度较快，缺点：内存开销大一些，可能会被卡内存。（一般不会）3、链式前向星：使用最为广泛的一种方法...
2018-03-17 10:13:04
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原创 01背包，完全背包，多重背包
背包问题是dp的经典内容。首先，先分清楚这三个背包问题。1.01背包：有n种物品与承重为m的背包。每种物品只有一件，每个物品都有对应的重量weight[i]与价值value[i]，求解如何装包使得价值最大。2.完全背包：有n种物品与承重为m的背包。每种物品有无限多件，每个物品都有对应的重量weight[i]与价值value[i]，求解如何装包使得价值最大。3.多重背包：有n种物品与承重...
2018-02-27 19:22:10
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原创 Codeforces 491B. New York Hotel 【枚举】【曼哈顿距离】
DescriptionThink of New York as a rectangular grid consisting of N vertical avenues numerated from 1 to N and M horizontal streets numerated 1 to M. C friends are staying at C hotels located at some st
2018-02-14 15:32:29
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原创 HDU 5414 CRB and String 【string】
DescriptionCRB has two strings ss and tt. In each step, CRB can select arbitrary character cc of ss and insert any character dd (d ≠ cd ≠ c) just after it. CRB wants to convert ss to tt. But is it
2018-02-14 14:37:28
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转载 HDU 6217 BBP Formula 【快速幂】
DescriptionIn 1995, Simon Plouffe discovered a special summation style for some constants. Two year later, together with the paper of Bailey and Borwien published, this summation style was named as the
2018-02-06 16:43:33
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原创 poj Dropping tests 【二分】【分数规划】
DescriptionIn a certain course, you take n tests. If you get ai out of bi questions correct on test i, your cumulative average is defined to be Given your test scores and a positive integer k, dete
2018-02-06 16:12:19
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原创 HDU 233 Matrix 5015【快速幂】
DescriptionIn our daily life we often use 233 to express our feelings. Actually, we may say 2333, 23333, or 233333 … in the same meaning. And here is the question: Suppose we have a matrix called 233 m
2018-02-06 15:31:55
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原创 POJ 3233-Matrix Power Series 【快速幂】
DescriptionGiven a n × n matrix A and a positive integer k, find the sum S = A + A2 + A3 + … + Ak.InputThe input contains exactly one test case. The first line of input contains three positive
2018-02-06 15:18:15
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原创 hdu3714 Error Curves 【三分】
DescriptionJosephina is a clever girl and addicted to Machine Learning recently. She pays much attention to a method called Linear Discriminant Analysis, which has many interesting properties. In
2018-02-06 14:02:33
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原创 Codeforces Round 340 (Div 2)D Polyline 【枚举】【思维】
DescriptionThere are three points marked on the coordinate plane. The goal is to make a simple polyline, without self-intersections and self-touches, such that it passes through all these points. Also,
2018-02-04 18:34:53
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原创 hdu 5143 NPY and arithmetic progression【思维】【枚举】
DescriptionNPY is learning arithmetic progression in his math class. In mathematics, an arithmetic progression (AP) is a sequence of numbers such that the difference between the consecutive terms is
2018-02-04 18:24:10
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原创 Codeforces gym 101341I Matrix God【思维】【hash】
Input file: standard input Output file: standard output Time limit: 2 seconds Memory limit: 256 megabytesDescirptionMatrices are square tables, containing integers in rows and columns. Do you
2018-02-04 17:51:19
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原创 Codeforces 593B Anton and Lines 【思维】【枚举】【排序】
DescriptionThe teacher gave Anton a large geometry homework, but he didn’t do it (as usual) as he participated in a regular round on Codeforces. In the task he was given a set of n lines defined by the
2018-02-04 17:26:11
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原创 Coderforces 617C Watering Flowers 【暴力】
DescriptionA flowerbed has many flowers and two fountains. You can adjust the water pressure and set any values r1(r1 ≥ 0) and r2(r2 ≥ 0), giving the distances at which the water is spread from the fi
2018-02-04 17:08:44
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原创 POJ 1723 SOLDIERS 【排序】
DescriptionN soldiers of the land Gridland are randomly scattered around the country. A position in Gridland is given by a pair (x,y) of integer coordinates. Soldiers can move - in one move, one s
2018-02-04 16:49:34
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原创 Codeforces Round #294 (Div. 2) -- D. A and B and Interesting Substrings 【hash】
DescriptionA and B are preparing themselves for programming contests. After several years of doing sports programming and solving many problems that require calculating all sorts of abstract object
2018-02-04 15:54:42
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