OtterVのrecorder

CSU20562056: a simple gameSubmit Page    Summary    Time Limit: 1 Sec     Memory Limit: 128 Mb     Submitted: 413     Solved: 74    Description这一天，小A和小B在玩一个游戏，他俩每人都有一个整数，然后两人轮流对他们的整数进行操作，每次在下列...

 Now Loading!!! ZOJ - 4029  题目大意：对于每次问询求那个公式的结果，最后输出每次问询*第几次的和。记得之前组队训练时遇到过一次，当时同队的学姐提出了log的预处理，我想到了log的范围只有1~30，但是没再想下去。顺着上面的想法，我们就会想到预处理出a数组在每个log情况下的前缀和。对于每次问询，处理p的每个次方段里的a数组，每段里分母一样，...

3-idiotsTime Limit: 10000/5000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 8695    Accepted Submission(s): 3010 Problem DescriptionKing OMeGa catched thre...

MoneySubmit Page    Time Limit: 1 Sec     Memory Limit: 128 Mb     Submitted: 11     Solved: 8    DescriptionZJ开公司，年年荣登315晚会。315当天，一大帮员工来ZJ公司讨工资。（显然又欠工资了囧）。员工们围成一个圈，把ZJ围在中间，打算用暴力手段讨取工资。机智如...

Wei Qing (died 106 BC) was a military general of the Western Han dynasty whose campaigns against the Xiongnu earned him great acclaim. He was a relative of Emperor Wu because he was the younger half-b...

The writing on the wall 2000ms  262144KFeeling hungry, a cute hamster decides to order some take-away food (like fried chicken for only 30 Yuan).However, his owner CXY thinks that take-away food...

Demy has n jewels. Each of her jewels has some value vi and weight wi.Since her husband John got broke after recent financial crises, Demy has decided to sell some jewels. She has decided that she w...

StarsTime Limit: 1000MS   Memory Limit: 65536K Total Submissions: 54300   Accepted: 23361 DescriptionAstronomers often examine star maps where stars are represented by points on a ...

Codeforces 1140E——有想法的分类讨论DP题目大意给一个长度为n的序列，其中-1的位置可被任意[1,k]的整数代替。要求是序列中的任意奇数长度子串不是回文串。问有多少种填充方案（不同序列）。思路首先转换题意，序列中的任意奇数长度子串不是回文串，可通过 a[i]≠a[i+2]a[i] \neq a[i+2]a[i]̸​=a[i+2] 条件满足，因为只要长度为3不满足，即可没...