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In this problem, we will define a graph called star graph, and the question is to find the minimum distance between two given nodes in the star graph. 阅读全文
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There are nnn rectangles on the plane. The problem is to find the area of the union of these rectangles. Note that these rectangles might overlap with 阅读全文
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Let SSS be a sequence of integers s1s_{1}s1, s2s_{2}s2, ........., sns_{n}sn Each integer is is associated with a weight by the following rul 阅读全文
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You are given a list of train stations, say from the station 111 to the station 100100100. The passengers can order several tickets from one station t 阅读全文
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描述 You are given a list of integers a0, a1, …, a2^k-1. You need to support two types of queries: 1. Output Minx,y∈[l,r] {ax∙ay}. 2. Let ax=y. 输入 The f 阅读全文
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描述 Ming is going to travel for n days and the date of these days can be represented by n integers: 0, 1, 2, …, n-1. He plans to spend m consecutive da 阅读全文
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题目传送： Hybrid Crystals Problem Description > Kyber crystals, also called the living crystal or simply the kyber, and known as kaiburr crystals in ancie 阅读全文
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题目传送：Killer Names Problem Description > Galen Marek, codenamed Starkiller, was a male Human apprentice of the Sith Lord Darth Vader. A powerful Force- 阅读全文
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Problem Description "You shall not pass!"After shouted out that,the Force Staff appered in CaoHaha's hand.As we all know,the Force Staff is a staff wi 阅读全文
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题目传送：http://acm.hdu.edu.cn/showproblem.php?pid=6152 Problem Description It is well known that small groups are not conducive of the development of a t 阅读全文
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Problem Description HazelFan is given two positive integers a,b， and he wants to calculate amodb. But now he forgets the value of b and only remember 阅读全文
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Bran and his older sister Arya are from the same house. Bran like candies so much, so Arya is going to give him some Candies. At first, Arya and Bran 阅读全文
