最近一直再打CF,没比赛就补div2,时间多补两场,时间少补一场,把div2补完,我发现每天来的题,两点睡的,六点半又起来去给...
Description:Given a prime number C(1≤C≤2×105)C(1≤C≤2×10^5)C(1≤C≤2
\quadThe only difference between problems C1C1C1 and C2C2C2 is that all values in inpu
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\quadYou are planning to buy an apartment in a n-floor building. The floors are numbered
Description:Guy-Manuel and Thomas are going to build a polygon sp
Description:Mathematicians love all sorts of odd properties of numbers. F
本来前几天是看的多项式卷积但是实在看不明白到底咋推出来的,然后今天开始看了莫比乌斯反演,感觉这个挺简单的,可能是还没有遇到难的问题,这两周事情挺多的,四级一点没看,来年一定好好复习,每天都是晚自习的时间去自习室复习半个小时,然后在实验室待到11点,回到宿舍收拾好都快十二
Description:ition i−aii−a_{i}i−ai (if 1≤i−ai)1≤i−a_{i})1≤i−ai) or to the position i+aii+...
要了解指针,多多少少会出现一些比较复杂的类型,所以我先介绍一下如何完全理解一个复杂类型,要理解复杂类型其实很简单,一个类型里会出现很多运算符,
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Hooray! Polycarp turned n years old! The Technocup Team sin
Description:A k-multiple free set is a set of integers where there is no pair o
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Description:A k-multiple free set is a set of integers where there is no
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\quadWe start with a string s consisting only of the digits 1,2,1, 2,1,2, or 333. The lencter of sss is...
题目描述有三个人,A,B,CA,B,CA,B,C ,其中 A{A}A 和 BBB 共享了一个神秘的数字 k...