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原创 每日三题-Day6-C(CSU 1508 地图的四着色 巧妙剪枝搜索dfs)

1508: 地图的四着色Submit Page    Summary    Time Limit: 20 Sec     Memory Limit: 128 Mb     Submitted: 222     Solved: 102    Description有一个R行C列的网格地图,每个国家是一个四连通区域。你的任务是用红,绿,蓝,黄四种颜色给地图着

2017-05-09 13:38:45 681

原创 每日三题-Day6-B(ZOJ 3939 The Lucky Week 找寻环节打表)

The Lucky WeekTime Limit: 2 Seconds      Memory Limit: 65536 KBEdward, the headmaster of the Marjar University, is very busy every day and always forgets the date.There was one day Edward su

2017-05-09 11:29:11 642

原创 每日三题-Day6-A(FZU 2214 Knapsack problem 01背包)

Problem 2214 Knapsack problemAccept: 583 Submit: 2225Time Limit: 3000 mSec Memory Limit : 32768 KB Problem DescriptionGiven a set of n items, each with a weight w[i] and a value

2017-04-30 21:14:12 710

原创 每日三题-Day5-C(HDU 1078 FatMouse and Cheese 记忆化搜索)

FatMouse and CheeseTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 9823 Accepted Submission(s): 4142Problem DescriptionFatMouse has

2017-04-30 20:48:32 480

原创 每日三题-Day5-B(POJ 3186 Treats for the Cows 区间DP)

Treats for the CowsTime Limit: 1000MS Memory Limit: 65536KTotal Submissions: 5874 Accepted: 3049DescriptionFJ has purchased N (1 The treats are interesting fo

2017-04-30 15:52:52 431

原创 每日三题-Day5-A(POJ 2533 Longest Ordered Subsequence 最长上升子序列O(nlogn)解法)

Longest Ordered SubsequenceTime Limit: 2000MS Memory Limit: 65536KTotal Submissions: 51451 Accepted: 22885DescriptionA numeric sequence of ai is ordered if a1 a2 

2017-04-30 14:42:56 420

原创 每日三题-Day4-C(HDU 1159 Common Subsequence 最长公共子序列O(nlogn)解法)

Common SubsequenceTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 38185 Accepted Submission(s): 17506Problem DescriptionA subsequ

2017-04-28 21:33:55 605

原创 每日三题-Day4-B(POJ 1661 Help Jimmy 基础DP)

原题地址Help JimmyTime Limit: 1000MS Memory Limit: 10000KTotal Submissions: 11399 Accepted: 3735Description"Help Jimmy" 是在下图所示的场景上完成的游戏。 场景中包括多个长度和高度各不相

2017-04-28 20:52:04 455

原创 每日三题-Day4-A(HDU 1160 FatMouse's Speed 最长有序子序列)

原题地址FatMouse's SpeedTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 16043 Accepted Submission(s): 7067Special JudgeProblem Desc

2017-04-21 13:16:35 501

原创 每日三题-Day3-C(HDU 1257 最少拦截系统 最长上升子序列O(nlogn) )

原题地址最少拦截系统Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 40250 Accepted Submission(s): 15708Problem Description某国为了防御敌国的导弹袭击

2017-04-21 12:02:12 512

原创 每日三题-Day3-B(HDU 1260 Tickets 基础DP)

原题地址TicketsTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 4031 Accepted Submission(s): 2023Problem DescriptionJesus, what a gr

2017-04-20 18:25:25 372

原创 每日三题-Day3-A(HDU 1176 免费馅饼 数塔)

原题地址免费馅饼Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 47725 Accepted Submission(s): 16498Problem Description都说天上不会掉馅饼,但有一

2017-04-20 17:44:32 427

原创 每日三题-Day2-C(HDU 1087 Super Jumping! Jumping! Jumping! 最大上升子序列和)

原题地址Super Jumping! Jumping! Jumping!Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 37302 Accepted Submission(s): 17041Problem De

2017-04-20 17:19:37 460

原创 每日三题-Day2-B(HDU 1114 Piggy-Bank 完全背包)

原题地址Piggy-BankTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 24047 Accepted Submission(s): 12180Problem DescriptionBefore ACM

2017-04-20 16:56:41 357

原创 每日三题-Day2-A(HDU 1074 Doing Homework 状压DP)

原题地址Doing HomeworkTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 8928 Accepted Submission(s): 4181Problem DescriptionIgnatius

2017-04-20 16:12:17 346

原创 每日三题-Day1-C(HDU 1069 Monkey and Banana 最大有序子序列和)

原题地址Monkey and BananaTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 14290 Accepted Submission(s): 7514Problem DescriptionA gro

2017-04-19 20:10:38 619

原创 每日三题-Day1-B(HDOJ 1024 Max Sum Plus Plus 最大m子段和)

Max Sum Plus PlusTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 12589    Accepted Submission(s): 4146Problem DescriptionNow

2017-04-18 14:27:53 678

原创 每日三题-Day1-A(POJ 1358 Housing Complexes 预处理+二分匹配)

原题地址←_←戳我传送Housing ComplexesTime Limit: 1000MS Memory Limit: 10000KTotal Submissions: 342 Accepted: 118DescriptionThe Ministry of housing is planning a hu

2017-04-18 12:55:48 797

原创 hdu 2196 Computer(树形DP)

原题地址:点我跳转ComputerTime Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 6551 Accepted Submission(s): 3299Problem DescriptionA school bou

2017-03-07 13:44:35 316

原创 HDU 1074 Doing Homework(状压DP+记录路径)

原题地址Doing HomeworkTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 8336 Accepted Submission(s): 3849Problem DescriptionIgnatius

2016-11-12 14:59:48 362

原创 HDU 1520 Anniversary party(树形DP 数组和结构体链表两种实现方式)

原题地址Anniversary partyTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 9790 Accepted Submission(s): 4186Problem DescriptionThere

2016-11-07 15:47:18 375

原创 POJ 2342 Anniversary party(树形DP)

原题地址Anniversary partyTime Limit: 1000MS Memory Limit: 65536KTotal Submissions: 7291 Accepted: 4195DescriptionThere is going to be a party to celebrate the

2016-11-07 15:26:31 267

原创 哈理工OJ 1847 擦除字符串(状压DP)

原题地址擦除字符串Time Limit: 5000 MSMemory Limit: 32768 KTotal Submit: 32(17 users)Total Accepted: 16(13 users)Rating: Special Judge: NoDescription

2016-11-05 16:40:32 358

原创 HDU 2046 骨牌铺方格(斐波那契递推 或者 状压DP)

原题地址骨牌铺方格Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 46926 Accepted Submission(s): 22654Problem Description在2×n的一个长方形方格中,

2016-11-05 16:25:37 469

原创 HDU 1874 畅通工程续(最短路 Floyd)

原题地址畅通工程续Time Limit: 3000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 47922 Accepted Submission(s): 17820Problem Description某省自从实行了很多年的畅通工程计

2016-11-05 15:35:39 349

原创 HDU 1232 畅通工程(并查集)

原题地址畅通工程Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 48385 Accepted Submission(s): 25780Problem Description某省调查城镇交通状况,得到现有城镇

2016-11-05 15:25:11 258

原创 HDU 1879 继续畅通工程(最小生成树)

原题地址继续畅通工程Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 22479 Accepted Submission(s): 9600Problem Description省政府“畅通工程”的目标是使全省

2016-11-05 15:20:13 295

原创 HDU 1875 畅通工程再续(最小生成树 kruskal)

原题地址畅通工程再续Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 25256 Accepted Submission(s): 8177Problem Description相信大家都听说一个“百岛湖”的地

2016-11-04 21:51:47 296

原创 HDU 1863 畅通工程(最小生成树 kruskal)

原题地址畅通工程Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 26795 Accepted Submission(s): 11711Problem Description省政府“畅通工程”的目标是使全

2016-11-04 21:38:13 292

原创 HDU 1233 还是畅通工程(最小生成树kruskal)

原题地址还是畅通工程Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 41231 Accepted Submission(s): 18824Problem Description某省调查乡村交通状况,得到的统

2016-11-04 21:23:42 317

原创 石子合并问题--圆形版(区间DP)

石子合并问题十分常见,典型的区间DP。这里作为一类问题整理出来,而没有贴上题目。dp[ i ][ j ]表示将区间[ i , j ]内的石子合并的最优解。同直线版的石子合并,当添加新的石堆时,枚举所有的中间点分两次合并,取最优解。需要注意的是,我们需要将圆形的石子合并问题转变为直线,可以将前部分的石子堆往后依次添加,这样当做直线来处理。代码:#inc

2016-11-02 17:46:58 577

原创 石子合并问题--直线版 (区间DP)

石子合并问题十分常见,典型的区间DP。这里作为一类问题整理出来,而没有贴上题目。dp[ i ][ j ]表示将区间[ i , j ]内的石子合并的最优解。当添加新的石堆时,枚举所有的中间点分两次合并,取最优解。代码:#include#includeusing namespace std;int a[110];int n;int min_ans;int ma

2016-11-02 17:42:10 746

原创 POJ 2955 Brackets(括号最大匹配,区间DP)

原题地址BracketsTime Limit: 1000MS Memory Limit: 65536KTotal Submissions: 6711 Accepted: 3612DescriptionWe give the following inductive definition of a “reg

2016-11-02 17:29:26 391

原创 HDU 4283 You Are the One(区间DP)

原题地址You Are the OneTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 3502 Accepted Submission(s): 1614Problem Description  The TV

2016-11-02 17:02:52 341

原创 HDU 2476 String painter(区间DP)

原题地址String painterTime Limit: 5000/2000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 3726 Accepted Submission(s): 1740Problem DescriptionThere are

2016-11-02 16:38:33 331

原创 HDU 1754 I Hate It(线段树单点更新)

原题地址I Hate ItTime Limit: 9000/3000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 67189 Accepted Submission(s): 26146Problem Description很多学校流行一种比较的习

2016-11-02 15:10:11 259

原创 HDU 1556 Color the ball(线段树区间更新)

原题地址Color the ballTime Limit: 9000/3000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 17600 Accepted Submission(s): 8809Problem DescriptionN个气球排成

2016-11-02 15:00:23 331

原创 HDU 1166 敌兵布阵(线段树单点更新)

原题地址敌兵布阵Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 79744 Accepted Submission(s): 33734Problem DescriptionC国的死对头A国这段时间正在进

2016-11-02 14:37:16 491

原创 最近在校园内发现暴风一号病毒(俗称1kb病毒),普及一下查杀和修复的方法

近日经常去打印店打印资料,有一天却发现,U盘出问题了。Excuses me?我的资料全在U盘里呢!尝试用360扫描U盘把病毒删了,但是数据依然没恢复过来。经百度后得知,这个病毒叫暴风一号,俗称1kb病毒。因为中毒U盘的最大特征是,U盘内的文件,全都变成了1kb的快捷方式,或者,U盘内只有一个1kb的,与U盘名字相同的快捷方式。但是文件管理器依然显示U盘已使用很多内存。这种病毒在打印店尤为常

2016-10-10 16:27:55 28581 4

原创 史上最牛C语言控制台游戏!C语言控制台音游——Rhythm Slasher! 附上源代码供交流学习

这个游戏是我大一上学期弄出来,刚学C语言,学了循环和选择结构。那时候数据结构都不太会,但是按捺不住自己的想法,总想用现有的东西做点什么。就连窗体程序都不会,没有任何的图片,全是ASCII字符的一个游戏,我为什么敢说是史上最牛?我感觉牛不在算法上,牛不在精美的界面,而是你仅仅用这样的条件,能创造出什么?C语言和控制台,大概是程序员最熟悉,最早接触的东西了吧。说到C语言控制台游戏,你可能想到的

2016-10-05 10:50:13 11153 6

深搜算法解数独

用深搜(深度优先搜索-DFS)算法解数独。通过解数独这一实例,相信能让初学者更直观地理解深搜的功能和实现。

2016-03-25

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