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ACM练习题

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全部文章 / ACM练习题（共250篇）

hdu5950——Recursive sequence

Farmer John likes to play mathematics games with his N cows. Recently, they are attracted by recursive sequences. In each turn, the cows would stand i...

2021-04-05

0 392

hdu5695——Gym Class

众所周知，度度熊喜欢各类体育活动。今天，它终于当上了梦寐以求的体育课老师。第一次课上，它发现一个有趣的事情。在上课之前，所有同学要排成一列，假设最开始每个人有一个唯一的ID，从1到N，在排好队之后，每个同学会找出包括自己在内的前方所有同学的最小ID，作为自己评价这堂课的分数。麻烦的是，有一些同...

2021-04-05

0 585

hdu4109——Instrction Arrangement

Ali has taken the Computer Organization and Architecture course this term. He learned that there may be dependence between instructions, like WAR (wri...

2021-04-05

0 521

hdu6024——Building Shops

HDU’s n classrooms are on a line ,which can be considered as a number line. Each classroom has a coordinate. Now Little Q wants to build several candy...

2021-04-05

0 616

hdu6025——Coprime Sequence

Do you know what is called Coprime Sequence''? That is a sequence consists of n positive integers, and the GCD (Greatest Common Divisor) of them is eq...

2021-04-05

0 440

hdu1428——漫步校园

LL最近沉迷于AC不能自拔，每天寝室、机房两点一线。由于长时间坐在电脑边，缺乏运动。他决定充分利用每次从寝室到机房的时间，在校园里散散步。整个HDU校园呈方形布局，可划分为n*n个小方格，代表各个区域。例如LL居住的18号宿舍位于校园的西北角，即方格(1,1)代表的地方，而机房所在的第三实验楼处于东...

2021-04-05

0 527

hdu6286——2018

Given a,b,c,d, find out the number of pairs of integers (x,y) where a≤x≤b,c≤y≤d and x⋅y is a multiple of 2018. Input The input consists of several t...

2021-04-05

0 382

hdu2102——A计划

可怜的公主在一次次被魔王掳走一次次被骑士们救回来之后，而今，不幸的她再一次面临生命的考验。魔王已经发出消息说将在T时刻吃掉公主，因为他听信谣言说吃公主的肉也能长生不老。年迈的国王正是心急如焚，告招天下勇士来拯救公主。不过公主早已习以为常，她深信智勇的骑士LJ肯定能将她救出。现据密探所报，公主被关...

2021-04-05

0 565

hdu5879——Cure

Given an integer n, we only want to know the sum of 1/k2 where k from 1 to n. Input There are multiple cases. For each test case, there is a single...

2021-04-05

0 380

hdu3068——最长回文

给出一个只由小写英文字符a,b,c…y,z组成的字符串S,求S中最长回文串的长度. 回文就是正反读都是一样的字符串,如aba, abba等 Input 输入有多组case,不超过120组,每组输入为一行小写英文字符a,b,c…y,z组成的字符串S 两组case之间由空行隔开(该空行不用处理) 字符串...

2021-04-05

0 458