//the first k elements interviewed and rejected, //for  the latter n-k elements ,if value >max,return value,  else return n'elements. #include<stdio.h>#include<stdlib.h>#include<time.h>#define ARRAY_SIZE 1000#define RANDOM_SIZE 100int…

Naive solution for this problem would be caluclate all the possible combinations: const numbers = [1, -3, 2 - 5, 7, 6, -1, -4, 11, -23]; // O(n^3) const findMaxSubAry = numbers => { let answer = Number.MIN_VALUE; /** * Calculate all the possible valu…

Given three integers n, m and k. Consider the following algorithm to find the maximum element of an array of positive integers: You should build the array arr which has the following properties: arr has exactly n integers. 1 <= arr[i] <= m where (0…

https://www.topcoder.com/community/data-science/data-science-tutorials/maximum-flow-augmenting-path-algorithms-comparison/ 存档用... By  Zealint– TopCoder Member Discuss this article in the forums With this article, we’ll revisit the so-called “max-flow…

Problem Introduction This is an example of a problem where a subproblem of the corresponding greedy algorithm is slightly distinct from the initial problem. Problem Description Task.The goal of this problem is to represent a given positive integer \(…

A Scheduling Problem   Description There is a set of jobs, say x1, x2,..., xn <tex2html_verbatim_mark>, to be scheduled. Each job needs one day to complete. Your task is to schedule the jobs so that they can be nished in a minimum number of days. Th…

发信人: fennec (fennec), 信区: Algorithm 标 题: acm 总结 by fennec 发信站: 吉林大学牡丹园站 (Wed Dec 8 16:27:55 2004) ACM总结(fennec) 其实在北京比赛完的时候,我就想写了,不过还是早了点,直到上海比赛结束,大家的心中都不是太好受.郭老师有句话:你们这样做也是对的,不成功就成仁.让我的心也能安慰了不少. 我是从大一下学期开始接触ACM的,那时候我们学校才刚刚起步,siyee,wjiang师兄可以说是我的领路人了…

Naive Bayes Theorm And Application - Theorem Naive Bayes model: 1. Naive Bayes model 2. model: discrete attributes with finit number of values 2. Parameter density estimation 3. Naive Bayes classification algorithm 4. AutoClass clustering alogrithm \…

simple and common parallel algorithm building block is the all-prefix-sums operation. In this chapter, we define and illustrate the operation, and we discuss in detail its efficient implementation using NVIDIA CUDA. Blelloch (1990) describes all-pref…

Repetitions of Substrings Description The “repetitions” of a string S(whose length is n) is a maximum number “k” such that: 1) k is a factor of n 2) S[0..n/k-1] = S[p*(n/k)..(p+1)*(n/k)-1] for all that (1 <= p < n/k) for example: the repetitions of…

题目链接:http://codeforces.com/contest/825/problem/C C. Multi-judge Solving time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Makes solves problems on Decoforces and lots of other different onlin…

一.概念 (1)完全子图/全耦合网络/k-派系:所有节点全部两两相连 图1 这些全耦合网络也成为派系,k-派系表示该全耦合网络的节点数目为k 1)k-派系相邻:两个不同的k-派系共享k-1个节点,认为他们相邻 2)k-派系连通:一个k-派系可以通过若干个相邻的k-派系到达另一个k-派系,则称这两个k-派系彼此联通 二.思路 图2 1- first find all cliques of size k in the graph 第一步首先找到网络中大小为K的完全子图,例如图2中k=3的完全子图有{…

题目链接: http://codeforces.com/problemset/problem/7/D D. Palindrome Degree time limit per test1 secondmemory limit per test256 megabytes 问题描述 String s of length n is called k-palindrome, if it is a palindrome itself, and its prefix and suffix of length…

个人心得:这题就是要确定是否为回文串,朴素算法会超时,所以想到用哈希,哈希从左到右和从右到左的key值一样就一定是回文串, 那么问题来了,正向还能保证一遍遍历,逆向呢,卡住我了,后面发现网上大神的秦九韶算法用上了,厉害了. 关于哈希,这题用的是最简单的哈希思想,就是用M取合理的素数,这题取得是3, 然后正向就是 a+=a*M+ch[i].逆向用秦九韶可以在循环的时候算出来, 举个例子比如三个值1,2,3. 假如逆向开始 则 (((0+s[3])*M+s[2])*M+s[1]);化简就等于s[1]…

The UN finals are here!, the coaches/ex-coaches team is creating a new exciting contest to select which teams will compete in the Colombian finals. Ivan said: the rules are clear, the only limitation to enroll teams in the Colombian finals is to pick…

Description A group of researchers are designing an experiment to test the IQ of a monkey. They will hang a banana at the roof of a building, and at the mean time, provide the monkey with some blocks. If the monkey is clever enough, it shall be able…

@http://www-cs-faculty.stanford.edu/people/karpathy/cvpr2015papers/ CVPR 2015 papers (in nicer format than this) maintained by @karpathy NEW: This year I also embedded the (1,2-gram) tfidf vectors of all papers with t-sne and placed them in an interf…

链接:https://ac.nowcoder.com/acm/contest/1113/K来源:牛客网 The cows have reverted to their childhood and are playing a game similar to human hopscotch. Their hopscotch game features a line of N (3 <= N <= 250,000) squares conveniently labeled 1..N that are…

D. Palindrome Degree time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output String s of length n is called k-palindrome, if it is a palindrome itself, and its prefix and suffix of length are (k - …

I collect and make up this pseudocode from the book: <<Introduction to the Design and Analysis of Algorithms_Second Edition>> _ Anany Levitin Note that throughout the paper, we assume that inputs to algorithms fall within their specified range…

[MySQL 5.6] MySQL 5.6 online ddl 使用.测试及关键函数栈  http://mysqllover.com/?p=547 本文主要分为三个部分,第一部分是看文档时的笔记:第二部分使用sysbench简单测试了下性能损耗:第三部分阐述了关键函数栈,但未做深入   前言   Online DDL是MySQL 5.6的重要特性之一,特别是对于不可间断的互联网服务而言意义非凡.尽管我们已经通过工具来实现了在线DDL,但由于借助了触发器来获取增量数据,很难保证不会触发BUG,我…

C. Unfair Poll time limit per test:1 second memory limit per test:256 megabytes input:standard input output:standard output On the Literature lesson Sergei noticed an awful injustice, it seems that some students are asked more often than others. Seat…

[RealtimeRendering III] 1.砖块渲染实例. 1)brick & mortar diffuse texture. 2)brick & mortar gloss texture. 3)applying bump mapping, the surface normals of the bricks may be varied so that when they are rendered, they do not appear to be perfectly smooth.…

# -*- coding: utf-8 -*- # 冒泡排序 def bubble_sort(nums): i = 1 exchanged = True while i < len(nums) and exchanged: exchanged = False for j in range(len(nums) - i): if nums[j] > nums[j + 1]: nums[j], nums[j + 1] = nums[j + 1], nums[j] exchanged = True i…

pygrib-2.0.3/docs/index.html 导入pygrib模块 >>> import pygrib 打开grib文件,获取grib消息迭代器 >>> grbs = pygrib.open('sampledata/flux.grb') 和打开正常的python文件对象一样,pygrib使用seek, tell, read, readline, 和close方法打开grib文件.唯一的不同的是,偏移量用grib消息衡量,而不是用字节. >>>…

Create options struct for optimization functions. optimset('parameter', value, ...); %设置所有参数及其值,未设置的为默认值 optimset(optimfun); %设置与最优化函数有关的参数为默认 optimset(old, 'parmeter', 'value', ... ); %复制已有的设置,并修改特定项 optimset(old, new); %两项合并 GradObj When set to "on…

P2990 [USACO10OPEN]牛跳房子Cow Hopscotch 题目描述 The cows have reverted to their childhood and are playing a game similar to human hopscotch. Their hopscotch game features a line of N (3 <= N <= 250,000) squares conveniently labeled 1..N that are chalked o…

D. Palindrome Degree 题目连接: http://www.codeforces.com/contest/7/problem/D Description String s of length n is called k-palindrome, if it is a palindrome itself, and its prefix and suffix of length are (k - 1)-palindromes. By definition, any string (ev…

Brief Description 給定一棵樹, 判斷是否可以將其分成\(\frac{n}{k}\)個聯通塊, 其中每個聯通塊的大小均爲k. Algorithm Design 我們有一個結論: k可行iff存在\(\frac{n}{k}\)個點, 以這些點爲根的子樹大小爲k或k的倍數. 讀者可以自行yy一下證明. 有了這個結論之後, 我們可以算出每個size, 用一個桶統計一下就好了. Code #include <algorithm> #include <cctype> #inc…

Java Cipher类 DES算法(加密与解密) 1.加密解密类 import java.security.*; import javax.crypto.*; import java.io.*; //对称加密器 public class CipherMessage { private String algorithm; // 算法,如DES private Key key; // 根据算法对应的密钥 private String plainText; // 明文 KeyGenerator ke…