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全部文章（共304篇）

hdu5536（01字典树）

Chip Factory John is a manager of a CPU chip factory, the factory produces lots of chips everyday. To manage large amounts of products, every processo...

2020-09-21

1 578

hdu6025（前后缀）

Coprime Sequence Do you know what is called ``Coprime Sequence’’? That is a sequence consists of nn positive integers, and the GCD (Greatest Common Di...

2020-09-21

1 488

hdu6024（dp）

Building Shops HDU’s nn classrooms are on a line ,which can be considered as a number line. Each classroom has a coordinate. Now Little Q wants to bui...

2020-09-21

0 553

sdnuoj1463（stl之next_permutation）

1463.星际交流 Description 人类终于登上了火星的土地并且见到了神秘的火星人。人类和火星人都无法理解对方的语言，但是我们的科学家发明了一种用数字交流的方法。这种交流方法是这样的，首先，火星人把一个非常大的数字告诉人类科学家，科学家破解这个数字的含义后，再把一个很小的数字加到这个大数上...

2020-09-21

0 579

sdnuoj1509（找规律）

1509.G.Triple Nim Description Alice and Bob are always playing all kinds of Nim games and Alice always goes first. Here is the rule of Nim game: Ther...

2020-09-21

1 520

sdnuoj1186模拟

1186.字符串的展开 Description 在初赛普及组的“阅读程序写结果”的问题中，我们曾给出一个字符串展开的例子：如果在输入的字符串中，含有类似于“d-h”或者“4-8”的字串，我们就把它当作一种简写，输出时，用连续递增的字母获数字串替代其中的减号，即，将上面两个子串分别输...

2020-09-21

0 482

sdnu1250递归

1250.F.陆历川让你A个题 Description This a veryyyyyyyyyyyyyy hard problem.One day, Lulichuan was played in city X with his friend, they like to paly a game c...

2020-09-21

0 550

sdnu1395(双向LIS)

Problem B: Trainsorting （ LIS） Description Problem B: Trainsorting Erin is an engineer. She drives trains. She also a...

2020-09-21

0 765

2019牛客ACM暑期多校第一场

太菜了就过了一道题。A-Equivalent Prefixes 题目描述 Two arrays u and v each with m distinct elements are called equivalent if and only if RMQ(u,l,r)=RMQ(v,l,r)...

2020-09-21

1 463

sdnu1506 D.Swiss-system tournament（归并排序）

D.Swiss-system tournament Description A Swiss-system tournament is a tournament which uses a non-elimination format. The first tournament of this ty...

2020-09-21

0 526