ACM_基础题(水题)
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poj 2105 IP Address
IP AddressSuppose you are reading byte streams from any device, representing IP addresses. Your task is to convert a 32 characters long sequence of '1s' and '0s' (bits) to a dotted decimal format. A dotted decimal format for an IP address is form by group原创 2015-10-20 23:28:04 · 1609 阅读 · 0 评论 -
杭电 HDU 2030 汉字统计
统计给定文本文件中汉字的个数。对于每一段文本，输出其中的汉字的个数，每个测试实例的输出占一行。[Hint:]从汉字机内码的特点考虑~原创 2015-10-20 23:44:58 · 1685 阅读 · 0 评论 -
POJ1159 Palindrome（dp加最少字母构成回文字符串）
PalindromeTime Limit: 3000MS Memory Limit: 65536KTotal Submissions: 57426 Accepted: 19910DescriptionA palindrome is a symmetrical string, that is, a string read identically from left to right as well as from right to left. You are to write a program原创 2015-10-27 20:04:30 · 1866 阅读 · 0 评论 -
POJ 1321 棋盘问题
棋盘问题Time Limit: 1000MS Memory Limit: 10000KTotal Submissions: 29621 Accepted: 14687Description在一个给定形状的棋盘（形状可能是不规则的）上面摆放棋子，棋子没有区别。要求摆放时任意的两个棋子不能放在棋盘中的同一行或者同一列，请编程求原创 2015-11-14 15:04:45 · 1924 阅读 · 0 评论 -
HDOJ 2054 遮挡判断
遮挡判断 HDOJ 2540 HDU在一个广场上有一排沿着东西方向排列的石柱子，阳光从东边以一定的倾角射来（平行光）。有的柱子可能被在他东边的高大的柱子的影子给完全遮挡住了。现在你要解决的问题是求出有多少柱子是没有被完全遮挡住的。假设每个石柱子是一根细棒，而且都垂直于地面摆放。原创 2015-11-20 20:39:10 · 1125 阅读 · 0 评论 -
qsort 用法详解
qsort转载 2015-11-16 19:11:05 · 4463 阅读 · 0 评论 -
HDU 2070 叠框
HDU 2074 HDUOJ2074需要的时候，就把一个个大小差一圈的筐叠上去，使得从上往下看时，边筐花色交错。这个工作现在要让计算机来完成，得看你的了。 Input输入是一个个的三元组，分别是，外筐尺寸n（n为满足0<n<80的奇整数），中心花色字符，外筐花色字符，后二者都为ASCII可见字符； Output输出叠在一起的筐图案，中心花色与外筐花色字符从内层起交错相叠，多筐相叠时，最外筐的角总是被打磨掉。叠筐与叠筐之间应有一行间隔。原创 2015-11-22 16:46:37 · 1217 阅读 · 0 评论 -
HDU2013蟠桃记（递归和非递归两种方式）
蟠桃记Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 50440 Accepted Submission(s): 37816Problem Description喜欢西游记的同学肯定都知道悟空偷吃蟠原创 2016-03-01 14:33:25 · 1294 阅读 · 0 评论 -
HDU2015偶数求和
偶数求和Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 69758 Accepted Submission(s): 29740Problem Description有一个长度为n(n Inp原创 2016-03-01 14:45:23 · 2303 阅读 · 0 评论 -
HDU1033 Edge（读懂题目是关键呀,两种方式实现!）
EdgeTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 2842 Accepted Submission(s): 1796Problem DescriptionFor products that are原创 2016-03-02 20:01:02 · 1965 阅读 · 1 评论 -
HDU 1196 Lowest Bit(基础题,有个小技巧)
Lowest BitTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 10560 Accepted Submission(s): 7751Problem DescriptionGiven an positiv原创 2016-03-29 17:11:20 · 2256 阅读 · 0 评论 -
HDU 1753 大明A+B(大小数加法,C模拟,Java BigDecimal)
大明A+BTime Limit: 3000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 11240 Accepted Submission(s): 4044Problem Description话说，经过了漫长的一个多月，小明已原创 2016-03-29 20:01:49 · 1461 阅读 · 0 评论 -
HDU 2553 N皇后问题(还是DFS呀)
N皇后问题Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 15739 Accepted Submission(s): 7154Problem Description在N*N的方格棋盘放置了N个皇后，使得原创 2016-03-29 13:55:22 · 931 阅读 · 0 评论 -
HDU 1002 A + B Problem II(大数加法,C,Java两个版本)
A + B Problem IITime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 300365 Accepted Submission(s): 57917Problem DescriptionI have原创 2016-03-27 23:37:57 · 1876 阅读 · 0 评论 -
POJ Knight Moves(BFS呀,但也有坑呀)
Knight MovesTime Limit: 1000MS Memory Limit: 30000KTotal Submissions: 23833 Accepted: 11202DescriptionBackground Mr Somurolov, fabulous chess-gamer indeed, asse原创 2016-03-20 22:37:40 · 2369 阅读 · 9 评论 -
HDU 1016 Prime Ring Problem(搜索入门题 DFS,多种方式)
州），英雄互娱（杭州）Prime Ring ProblemTime Limit: 4000/2000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 39066 Accepted Submission(s): 17239Probl原创 2016-03-18 20:55:48 · 1329 阅读 · 0 评论 -
HDU 4548 美素数(打表呀,有个小技巧)
美素数Time Limit: 3000/1000 MS (Java/Others) Memory Limit: 65535/32768 K (Java/Others)Total Submission(s): 5066 Accepted Submission(s): 1721Problem Description 小明对数的研究比较热爱，一谈到数，脑子里原创 2016-03-30 22:19:57 · 2159 阅读 · 0 评论 -
HDU 2153 仙人球的残影(类蛇形填数)
仙人球的残影Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 6791 Accepted Submission(s): 3154Problem Description在美丽的HDU，有一名大三的同学，他的原创 2016-03-30 20:53:19 · 1517 阅读 · 1 评论 -
HDU1998奇数阶魔方（连续摆数法（也称暹罗法）构造）
奇数阶魔方Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 3288 Accepted Submission(s): 1762Problem Description一个 n 阶方阵的元素是1,2,...,原创 2016-03-08 11:29:28 · 2123 阅读 · 0 评论 -
HDU1372&POJ2243Knight Moves(BFS呀,转换一下)
Knight MovesTime Limit: 1000MS Memory Limit: 65536KTotal Submissions: 13145 Accepted: 7369DescriptionA friend of you is doing research on the Traveling Knight Pro原创 2016-03-20 22:47:14 · 978 阅读 · 0 评论 -
HDU1000A + B Problem（入门题,c,Java）
HDU1000 C，Java原创 2016-02-23 18:25:32 · 1882 阅读 · 0 评论 -
HDU 1001Sum Problem（入门题，C，Java两个版本）
Sum ProblemTime Limit: 1000/500 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 392144 Accepted Submission(s): 98390Problem DescriptionHey, welcome原创 2016-02-23 19:05:17 · 3844 阅读 · 4 评论 -
HDU1089-1092A+B for Input-Output Practice（入门题C，Java两个版本）
1089 A+B for Input-Output Practice (I)Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 113308 Accepted Submission(s): 61772Probl原创 2016-02-23 19:32:12 · 1690 阅读 · 0 评论 -
HDU1093A+B for Input-Output Practice (V)（入门题C，Java两个版本）
A+B for Input-Output Practice (V)Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 64946 Accepted Submission(s): 43409Problem Des原创 2016-02-23 19:38:20 · 928 阅读 · 0 评论 -
HDU1094A+B for Input-Output Practice (VI)(入门题，C，Java两个版本)
A+B for Input-Output Practice (VI)Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 60613 Accepted Submission(s): 40750Problem De原创 2016-02-23 19:44:27 · 1010 阅读 · 0 评论 -
HDU 1004 Let the Balloon Rise (字符统计)
Let the Balloon RiseTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 100790 Accepted Submission(s): 38657Problem DescriptionCo原创 2016-04-01 23:27:03 · 1128 阅读 · 0 评论 -
HDU2519新生晚会（组合数公式）
新生晚会Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 12068 Accepted Submission(s): 4173Problem Description开学了，杭电又迎来了好多新生。ACMer原创 2016-03-09 19:55:01 · 1170 阅读 · 0 评论 -
POJ1306Combinations(组合数公式)
CombinationsTime Limit: 1000MS Memory Limit: 10000KTotal Submissions: 9095 Accepted: 4199DescriptionComputing the exact number of ways that N things can be taken原创 2016-03-09 20:09:46 · 1877 阅读 · 0 评论 -
HDU 2502月之数(递推呀。。。)
月之数Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 8796 Accepted Submission(s): 5157Problem Description当寒月还在读大一的时候，他在一本武林秘籍原创 2016-03-09 21:31:32 · 844 阅读 · 0 评论 -
HDU2000ASCII码排序（C,Java两个版本）
ASCII码排序Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 129693 Accepted Submission(s): 53459Problem Description输入三个字符后，按各字符原创 2016-02-24 23:34:13 · 1861 阅读 · 0 评论 -
HDU2001计算两点间的距离（C,Java用DecimalFormat格式控制）
输入两点坐标（X1,Y1）,（X2,Y2）,计算并输出两点间的距离。输入数据有多组，每组占一行，由4个实数组成，分别表示x1,y1,x2,y2,数据之间用空格隔开。原创 2016-02-24 23:48:16 · 1539 阅读 · 0 评论 -
HDU2009求数列的和（两种思想）
求数列的和Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 65636 Accepted Submission(s): 40054Problem Description数列的定义如下：数列的第一项为n原创 2016-02-25 13:29:14 · 2525 阅读 · 0 评论 -
UVa 11039 Building designing (求按绝对值升序最长正负交替数列长度)
UVA - 11039Building designingTime Limit: 3000MS Memory Limit: Unknown 64bit IO Format: %lld & %lluSubmit StatusDescription题意:有n个绝对值各原创 2016-03-10 19:42:58 · 926 阅读 · 0 评论 -
Uva10905 Children's Game (C++String的运运用呀...)
.Children's GameTime Limit: 3000MS Memory Limit: Unknown 64bit IO Format: %lld & %lluSubmit StatusDescription题意:给定n个正整数,把它们连接成一个最大的整数.比如,1原创 2016-03-10 20:14:06 · 810 阅读 · 0 评论 -
UVALive 3213 Ancient Cipher(坑呀.........)
.Ancient CipherTime Limit: 3000MS Memory Limit: Unknown 64bit IO Format: %lld & %lluSubmit StatusDescription题意:给;两个长度相同的字符串,判断他们之间的26个字母是否原创 2016-03-10 21:54:08 · 850 阅读 · 0 评论 -
HDU 2099 整除的尾数（暴力模拟）
整除的尾数Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 33056 Accepted Submission(s): 13986Problem Description一个整数，只知道前几位，不知道末二位原创 2016-04-04 17:00:45 · 1057 阅读 · 0 评论 -
HDU 1164 Eddy's research I（将数分解成素数之积）
Eddy's research ITime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 8298 Accepted Submission(s): 5085Problem DescriptionEddy's i原创 2016-04-04 23:16:07 · 918 阅读 · 0 评论 -
UVa 1586 Molar mass (计算分子量,不含扩号)
Molar massDescriptionAn organic compound is any member of a large class of chemical compounds whose molecules contain carbon. Themolarmass of an organic compound is the mass of one m原创 2016-03-13 20:38:03 · 2440 阅读 · 0 评论 -
Uva1585 Score (简单统计)
ScoreDescriptionThere is an objective test result such as ``OOXXOXXOOO". An `O' means a correct answer of a problem and an `X' means a wrong answer. The score of each problem of this test is c原创 2016-03-13 20:25:23 · 1432 阅读 · 0 评论 -
HDU 2018 母牛的故事(递推呀...)
母牛的故事Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 64827 Accepted Submission(s): 32236Problem Description有一头母牛，它每年年初生一头小母牛。原创 2016-03-24 21:22:02 · 1147 阅读 · 0 评论