nexthexonextbutterflyvolantisyearnyiliashokaindigoapollolandscapecactusmateryicarusfluidmaterial nameThis Problem Is Too Simple！ description给您一颗树，每个节点有个初始值。现在支持以下两种操作： C i x(0<=x<2^31)...

nexthexonextbutterflyvolantisyearnyiliashokaindigoapollolandscapecactusmateryicarusfluidmaterial ###nameTransformation ###descriptionYuanfang is puzzled with the question below:There are n integer...

nexthexonextbutterflyvolantisyearnyiliashokaindigoapollolandscapecactusmateryicarusfluidmaterial ###name决战圆锥曲线 ###descirption数学考试，一道圆锥曲线的题难住了你，你开始疯狂地笔算。但是，这题实在太难，于是你决定每种思路多尝试尝试。 你的思维过程可以转化为如下过程：有...

nexthexonextbutterflyvolantisyearnyiliashokaindigoapollolandscapecactusmateryicarusfluidmaterial ###name双面棋盘 ###descirption佳佳有一个 n 行 n 列的黑白棋盘，每个格子都有两面，一面白色，一面黑色。佳佳把棋盘平放在桌子上，因此每个格子恰好一面朝上，如下图所示：我们把每...

nexthexonextbutterflyvolantisyearnyiliashokaindigoapollolandscapecactusmateryicarusfluidmaterial namek-Maximum Subsequence Sum descirptiontime limit per test 4 secondsmemory limit per test 256 meg...

nexthexonextbutterflyvolantisyearnyiliashokaindigoapollolandscapecactusmateryicarusfluidmaterial nameDZY Loves Fibonacci Numbers discriptiontime limit per test:4 secondsmemory limit per test:256 m...

nexthexonextbutterflyvolantisyearnyiliashokaindigoapollolandscapecactusmateryicarusfluidmaterial ###nameNonsense Time ###descriptionYou a given a permutation $p_1,p_2,…,p_n$ of size n. Initially, ...

nexthexonextbutterflyvolantisyearnyiliashokaindigoapollolandscapecactusmateryicarusfluidmaterial ###namePair ###descirptionGiven three integers A, B, C. Count the number of pairs <x,y> (with...

nexthexonextbutterflyvolantisyearnyiliashokaindigoapollolandscapecactusmateryicarusfluidmaterial ###nameFind the median ###descirptionLet median of some array be the number which would stand in th...

nexthexonextbutterflyvolantisyearnyiliashokaindigoapollolandscapecactusmateryicarusfluidmaterial ###namefraction ###descirptionMany problems require printing the probability of something. Moreover...