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机器学习简介

文章转自:https://www.cnblogs.com/subconscious/p/4107357.html从机器学习谈起  在本篇文章中,我将对机器学习做个概要的介绍。本文的目的是能让即便完全不了解机器学习的人也能了解机器学习,并且上手相关的实践。这篇文档也算是EasyPR开发的番外篇,从这里开始,必须对机器学习了解才能进一步介绍EasyPR的内核。当然,本文也面对一般读者,不会...

2019-07-01 14:46:14

E. Compatible Numbers

http://codeforces.com/problemset/problem/165/EE. Compatible Numberstime limit per test4 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputTwo integer...

2019-05-30 20:53:30

D. Vasya and Triangle(数学思维)

en .感觉学弟都过了。我也没想出来。只想到了开始,没有想到怎么凑,感觉挺可惜的。http://codeforces.com/problemset/problem/1058/DD. Vasya and Triangletime limit per test1 secondmemory limit per test256 megabytesinputstandard ...

2019-05-23 18:05:03

哈密尔顿回路

从一个点开始走一圈经过所有点再回到起点,有且仅一次,有向图,求价格最小。#include<iostream>#include<cstring>#include<cstdlib>#include<cstdio>#include<cmath>#include<string>#include<map>...

2019-04-14 12:08:06

分考场(dfs)

http://lx.lanqiao.cn/problem.page?gpid=T457问题描述  n个人参加某项特殊考试。  为了公平,要求任何两个认识的人不能分在同一个考场。  求是少需要分几个考场才能满足条件。输入格式  第一行,一个整数n(1<n<100),表示参加考试的人数。  第二行,一个整数m,表示接下来有m行数据  以下m行每行的格式为:两个整数a...

2019-03-19 20:56:15

poj2955(区间dp)

BracketsTime Limit: 1000MS Memory Limit: 65536K Total Submissions: 13828 Accepted: 7286 DescriptionWe give the following inductive definition of a “regular brackets” sequence:...

2019-03-16 15:57:12

poj3666+poj1745+poj3616(dp)

http://poj.org/problem?id=3666A straight dirt road connects two fields on FJ's farm, but it changes elevation more than FJ would like. His cows do not mind climbing up or down a single slope, but th...

2019-03-15 23:24:22

剪气球串(状压dp或普通dp)

剪气球串(360公司2017春招真题)http://exercise.acmcoder.com/online/online_judge_ques?ques_id=3862&konwledgeId=42小明买了一些彩色的气球用绳子串在一条线上,想要装饰房间,每个气球都染上了一种颜色,每个气球的形状都是各不相同的。我们用1到9一共9个数字表示不同的颜色,如12345则表示一串5个颜色各...

2019-03-05 16:26:40

分金子(区间dp)

分金子(360公司2017春招真题)A、B两伙马贼意外地在一片沙漠中发现了一处金矿,双方都想独占金矿,但各自的实力都不足以吞下对方,经过谈判后,双方同意用一个公平的方式来处理这片金矿。处理的规则如下:他们把整个金矿分成n段,由A、B开始轮流从最左端或最右端占据一段,直到分完为止。马贼A想提前知道他们能分到多少金子,因此请你帮忙计算他们最后各自拥有多少金子?(两伙马贼均会采取对己方有...

2019-03-05 12:13:55

poj3273—Monthly Expense(二分)

Monthly Expensehttp://poj.org/problem?id=3273Time Limit: 2000MS   Memory Limit: 65536K Total Submissions: 36945   Accepted: 13718 DescriptionFarmer John is an astounding accounti...

2019-02-11 16:48:20

poj1064(二分)

Cable masterhttp://poj.org/problem?id=1064Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 71483   Accepted: 14576 DescriptionInhabitants of the Wonderland have decid...

2019-02-11 16:12:21

poj2785(二分)

4 Values whose Sum is 0Time Limit: 15000MS   Memory Limit: 228000K Total Submissions: 31340   Accepted: 9568 Case Time Limit: 5000MS DescriptionThe SUM problem can be formulated ...

2019-02-11 14:42:25

A. Purification(cf-div1-A)

A. Purificationhttp://codeforces.com/contest/329/problem/Atime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputYou are an adventurer...

2019-02-11 13:54:00

A. Shifts

A. Shiftshttp://codeforces.com/contest/229/problem/Atime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputYou are given a table cons...

2019-02-11 12:17:35

poj3250(优先队列)

Bad Hair DayTime Limit: 2000MS   Memory Limit: 65536K Total Submissions: 23081   Accepted: 7910 DescriptionSome of Farmer John's N cows (1 ≤ N ≤ 80,000) are having a bad hair day! ...

2019-02-10 22:38:03

poj2833(优先队列)

poj2833The AverageTime Limit: 6000MS   Memory Limit: 10000K Total Submissions: 13177   Accepted: 3926 Case Time Limit: 4000MS DescriptionIn a speech contest, when a contestant ...

2019-02-10 22:37:49

hdu1506 Largest Rectangle in a Histogram(思维)

Largest Rectangle in a HistogramTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 24040    Accepted Submission(s): 7527 Problem Description...

2019-02-10 22:35:40

Passing the Message(单调栈)

Passing the MessageTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1086    Accepted Submission(s): 709 Problem DescriptionWhat a sunny d...

2019-02-10 20:52:40

Max Sum of Max-K-sub-sequence (单调队列)

Max Sum of Max-K-sub-sequenceTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 9826    Accepted Submission(s): 3639 Problem DescriptionGiv...

2019-02-10 16:38:46

大水题(容斥原理)

链接:https://ac.nowcoder.com/acm/challenge/terminal来源:牛客网 时间限制:C/C++ 1秒,其他语言2秒空间限制:C/C++ 32768K,其他语言65536K64bit IO Format: %lld题目描述给出一个数n,求1到n中,有多少个数不是2 5 11 13的倍数。输入描述:本题有多组输入每行一个数n,1&l...

2019-02-03 20:14:41

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