B. Island Puzzle time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output A remote island chain contains n islands, labeled 1 through n. Bidirectional bridges connect the islands to form a simple c…

A. Orchestra time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Paul is at the orchestra. The string section is arranged in an r × c rectangular grid and is filled with violinists with the ex…

A. Island Puzzle time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output A remote island chain contains n islands, labeled 1 through n. Bidirectional bridges connect the islands to form a simple c…

B. Island Puzzle time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output A remote island chain contains n islands, labeled 1 through n. Bidirectional bridges connect the islands to form a simple c…

暴力 A - Orchestra import java.io.*; import java.util.*; public class Main { public static void main(String[] args) { Scanner cin = new Scanner (System.in); int r = cin.nextInt (); int c = cin.nextInt (); int n = cin.nextInt (); int k = cin.nextInt ();…

模拟枚举... A - New Year and Buggy Bot(http://codeforces.com/problemset/problem/908/B) 暴力枚举即可,但是直接手动暴力会非常繁琐,所以用到了STL,next_permutation(a,a+4),这个函数便是对a内元素进行全排列. #include<bits/stdc++.h> #define N 100000 #define ll long long using namespace std; ]; ][],s[];…

由于换了台电脑,而我的贪心 & 构造能力依然很拉跨,所以决定再开一个坑( 前传: 贪心/构造/DP 杂题选做 u1s1 我预感还有Ⅲ(欸,这不是我在多项式Ⅱ中说过的原话吗) 24. P5912 [POI2004]JAS 一开始直接莽了个点分治,当我测过了样例美滋滋地一交,发现自己获得了 20 分的好成绩之后,才发现事情有那么亿点点不对劲( 不难发现,题目等价于求高度最小的点分树的高度,直接求有点困难,我们不妨来对其进行一些转化:我们考虑给每个点一个标号,那么问题可以转化为,求使得任意两个标号相同…

B. sland Puzzle 题目连接: http://www.codeforces.com/contest/635/problem/B Description A remote island chain contains n islands, labeled 1 through n. Bidirectional bridges connect the islands to form a simple cycle - a bridge connects islands 1 and 2, isl…

澳大利亚的华裔数学神童陶哲轩曾在网上贴出来一个问题 The blue-eyed islanders puzzle 让大家思考,逗大家玩儿. 说一个岛上有100个人,其中有5个红眼睛,95个蓝眼睛.这个岛有三个奇怪的宗教规则. 他们不能照镜子,不能看自己眼睛的颜色. 他们不能告诉别人对方的眼睛是什么颜色. 一旦有人知道了自己的眼睛颜色,他就必须在第二天中午自杀. 注:虽然题设了有5个红眼睛,但岛民是不知道具体数字的.(因为互相能看见,所有岛上的蓝眼睛的人知道岛上有红眼睛) 某天,有个旅行者到了这个…

Codeforce 914 D. Bash and a Tough Math Puzzle 解析(線段樹.數論) 今天我們來看看CF914D 題目連結 題目 給你一個長度為\(n\)的數列\(a\),每次玩家會選擇一個區間猜\(g.c.d.\)的值,或者改變數列中的某個數字.而猜中不一定要完全準確,如果玩家能夠改動一個區間中的數字讓\(g.c.d.\)完全猜中也是可以的. 前言 我對線段樹還是不熟阿,一開始一直感覺\(g.c.d.\)沒辦法用線段樹維護... 想法 上模板,從維護區間和的模板改成…

You are given a map in form of a two-dimensional integer grid where 1 represents land and 0 represents water. Grid cells are connected horizontally/vertically (not diagonally). The grid is completely surrounded by water, and there is exactly one isla…

Puzzle 面向服务/切面AOP开发框架 For .Net AOP主要实现的目的是针对业务处理过程中的切面进行提取,它所面对的是处理过程中的某个步骤或阶段,以获得逻辑过程中各部分之间低耦合性的隔离效果. 日常的产品开发中最常见的就是数据保存的功能.举例来说,现在有个用户信息数据保存的功能,我们希望在数据保存前对数据进行校验,其中现在能想到的校验就包含数据完整性校验和相同数据是否存在校验.按照传统的OOP(面向对象程序设计),我们需要定义一个IUserDataSaveService(用户数据保存…

https://leetcode.com/problems/island-perimeter/ 在一个N×N的矩阵中,N<100,1代表岛,0代表海,岛内没有海,求岛的周长 [[0,1,0,0], [1,1,1,0], [0,1,0,0], [1,1,0,0]] Answer: 16 Explanation: The perimeter is the 16 yellow stripes in the image below: 由正方形组成的不规则图形的周长和正方形个数有什么关系? 这个就是这题的…

题目 Source http://acm.hdu.edu.cn/showproblem.php?pid=5456 Description As an exciting puzzle game for kids and girlfriends, the Matches Puzzle Game asks the player to find the number of possible equations A−B=C with exactly n (5≤n≤500) matches (or stic…

#463. Island Perimeter You are given a map in form of a two-dimensional integer grid where 1 represents land and 0 represents water. Grid cells are connected horizontally/vertically (not diagonally). The grid is completely surrounded by water, and th…

原题链接在这里:https://leetcode.com/problems/island-perimeter/ 题目: You are given a map in form of a two-dimensional integer grid where 1 represents land and 0 represents water. Grid cells are connected horizontally/vertically (not diagonally). The grid is c…

one recursive approach to solve hdu 1016, list all permutations, solve N-Queens puzzle. reference: the video of stanford cs106b lecture 10 by Julie Zelenski https://www.youtube.com/watch?v=NdF1QDTRkck // hdu 1016, 795MS #include <cstdio> #include &l…

Katu Puzzle Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 6714   Accepted: 2472 Description Katu Puzzle is presented as a directed graph G(V, E) with each edge e(a, b) labeled by a boolean operator op (one of AND, OR, XOR) and an integ…

Description There are N cities and N-1 roads in Magic-Island. You can go from one city to any other. One road only connects two cities. One day, The king of magic-island want to visit the island from the capital. No road is visited twice. Do you know…

Multiplication Puzzle Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 8737   Accepted: 5468 Description The multiplication puzzle is played with a row of cards, each containing a single positive integer. During the move player takes one…

D. Bad Luck Island time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output The Bad Luck Island is inhabited by three kinds of species: r rocks, s scissors and p papers. At some moments of time two…

题目链接:http://poj.org/problem?id=1651 Description The multiplication puzzle is played with a row of cards, each containing a single positive integer. During the move player takes one card out of the row and scores the number of points equal to the prod…

Ignatius's puzzle Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 4935    Accepted Submission(s): 3359 Problem Description Ignatius is poor at math,he falls across a puzzle problem,so he has no…

A hard puzzle Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 23766    Accepted Submission(s): 8390 Problem Description lcy gives a hard puzzle to feng5166,lwg,JGShining and Ignatius: gave a and…

Problem Description lcy gives a hard puzzle to feng5166,lwg,JGShining and Ignatius: gave a and b,how to know the a^b.everybody objects to this BT problem,so lcy makes the problem easier than begin.this puzzle describes that: gave a and b,how to know…

Bahosain is walking in a street of N blocks. Each block is either empty or has one lamp. If there is a lamp in a block, it will light it’s block and the direct adjacent blocks. For example, if there is a lamp at block 3, it will light the blocks 2, 3…

                                                           M × N Puzzle Time Limit: 4000MS   Memory Limit: 131072K Total Submissions: 4112   Accepted: 1140 Description The Eight Puzzle, among other sliding-tile puzzles, is one of the famous problems…

The Problem. 求解8数码问题.用最少的移动次数能使8数码还原. Best-first search.使用A*算法来解决,我们定义一个Seach Node,它是当前搜索局面的一种状态,记录了从初始到达当前状态的移动次数和上一个状态.初始化时候,当前状态移动次数为0,上一个状态为null,将其放入优先级队列,通过不断的从优先级队列中取出Seach Node去扩展下一级的状态,直到找到目标状态.对于优先级队列中优先级的定义我们可以采用:Hamming priority function 和…

圣诞前上线的App,Tangram Puzzle 限免,大家去下载玩玩. 介绍网站:http://www.mokamisu.com/ App Store:https://itunes.apple.com/en/app/tangram-puzzle/id781360993?mt=8 惯例App的开发总结稍后放出...…

B - Hongcow Solves A Puzzle 题目连接: http://codeforces.com/contest/745/problem/B Description Hongcow likes solving puzzles. One day, Hongcow finds two identical puzzle pieces, with the instructions "make a rectangle" next to them. The pieces can be…