随笔分类 - OJ---HDU
摘要：Kelukin is a businessman. Every day, he travels around cities to do some business. On August 17th, in memory of a great man, citizens will read a book
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摘要：One day, Kaitou Kiddo had stolen a priceless diamond ring. But detective Conan blocked Kiddo's path to escape from the museum. But Kiddo didn't want t
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摘要：There are N schedules, the i-th schedule has start time s i si and end time e i ei (1 <= i <= N). There are some machines. Each two overlapping schedu
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摘要：There is a nonnegative integer sequence a 1...n a1...n of length n n . HazelFan wants to do a type of transformation called prefix-XOR, which means a
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摘要：Bob has a dictionary with N words in it. Now there is a list of words in which the middle part of the word has continuous letters disappeared. The mid
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摘要：We define the distance of two strings A and B with same length n is dis A,B =∑ i=0 n−1 |A i −B n−1−i | disA,B=∑i=0n−1|Ai−Bn−1−i| The difference betwee
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摘要：Give an array A, the index starts from 1. Now we want to know B i =max i∤j A j Bi=maxi∤jAj , i≥2 i≥2 . InputThe first line of the input gives the numb
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摘要：Little Ruins is playing a number game, first he chooses two positive integers yy and KK and calculates f(y,K)f(y,K), here f(y,K)=∑z in every digits of
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摘要：Nim is a mathematical game of strategy in which two players take turns removing objects from distinct heaps. On each turn, a player must remove at lea
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摘要：One day Silence is interested in revolving the digits of a positive integer. In the revolving operation, he can put several last digits to the front o
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摘要：Give you a string with length N, you can generate N strings by left shifts. For example let consider the string “SKYLONG”, we can generate seven strin
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摘要：Alice are given an array A[1..N]A[1..N] with NN numbers. Now Alice want to build an array BB by a parameter KK as following rules: Initially, the arra
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摘要：Bob intends to color the nodes of a tree with a pen. The tree consists of NN nodes. These nodes are numbered 1,2,...,N1,2,...,N. The root of the tree
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摘要：Alice is interesting in computation geometry problem recently. She found a interesting problem and solved it easily. Now she will give this problem to
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摘要：There is a sequence aa of length nn. We use aiai to denote the ii-th element in this sequence. You should do the following three types of operations t
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摘要：On Saint Valentine's Day, Alex imagined to present a special pendant to his girl friend made by K kind of pearls. The pendant is actually a string of
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摘要：Perhaps the sea‘s definition of a shell is the pearl. However, in my view, a shell necklace with n beautiful shells contains the most sincere feeling
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摘要：度度熊参与了喵哈哈村的商业大会，但是这次商业大会遇到了一个难题： 喵哈哈村以及周围的村庄可以看做是一共由n个片区，m条公路组成的地区。 由于生产能力的区别，第i个片区能够花费a[i]元生产1个商品，但是最多生产b[i]个。 同样的，由于每个片区的购买能力的区别，第i个片区也能够以c[i]的价格出售最
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摘要：都是取的模板，这几天做的素数题挺多的，所以整理了放在这里，感觉有一天回用到的！ SPOJ:Nth Prime： 求第N个素数，N<1e9。 #include<bits/stdc++.h> using namespace std; typedef long long ll; const int N=2
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摘要：Zeus 和 Prometheus 做了一个游戏，Prometheus 给 Zeus 一个集合，集合中包含了N个正整数，随后 Prometheus 将向 Zeus 发起M次询问，每次询问中包含一个正整数 S ，之后 Zeus 需要在集合当中找出一个正整数 K ，使得 K 与 S 的异或结果最大。Pr
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