2017年1月1日
USACO 3.3 A Game
摘要： Consider the following two-player game played with a sequence of N positive integers (2 <= N <= 100) laid onto a 1 x N game board. Player 1 starts the 阅读全文
posted @ 2017-01-01 19:12 sigongzi 阅读(406) 评论(0) 推荐(0) 编辑
USACO 3.3 Camelot
摘要： Centuries ago, King Arthur and the Knights of the Round Table used to meet every year on New Year's Day to celebrate their fellowship. In remembrance 阅读全文
posted @ 2017-01-01 18:00 sigongzi 阅读(377) 评论(0) 推荐(0) 编辑
2016年12月18日
USACO 3.3 Shopping Offers
摘要： In a certain shop, each kind of product has an integer price. For example, the price of a flower is 2 zorkmids (z) and the price of a vase is 5z. In o 阅读全文
posted @ 2016-12-18 15:54 sigongzi 阅读(564) 评论(0) 推荐(0) 编辑
USACO 3.3 TEXT Eulerian Tour中的Cows on Parade一点理解
摘要： Farmer John has two types of cows: black Angus and white Jerseys. While marching 19 of their cows to market the other day, John's wife Farmeress Joann 阅读全文
posted @ 2016-12-18 13:21 sigongzi 阅读(723) 评论(0) 推荐(0) 编辑
USACO 3.3 Riding the Fences
摘要： Farmer John owns a large number of fences that must be repaired annually. He traverses the fences by riding a horse along each and every one of them ( 阅读全文
posted @ 2016-12-18 09:47 sigongzi 阅读(507) 评论(0) 推荐(0) 编辑
2016年12月11日
USACO 3.2 Magic Squares
摘要： Following the success of the magic cube, Mr. Rubik invented its planar version, called magic squares. This is a sheet composed of 8 equal-sized square 阅读全文
posted @ 2016-12-11 18:09 sigongzi 阅读(373) 评论(0) 推荐(0) 编辑
2016年12月4日
USACO 3.2 Stringsobits
摘要： Consider an ordered set S of strings of N (1 <= N <= 31) bits. Bits, of course, are either 0 or 1. This set of strings is interesting because it is or 阅读全文
posted @ 2016-12-04 20:43 sigongzi 阅读(487) 评论(0) 推荐(0) 编辑
USACO 3.2 Factorials
摘要： The factorial of an integer N, written N!, is the product of all the integers from 1 through N inclusive. The factorial quickly becomes very large: 13 阅读全文
posted @ 2016-12-04 19:35 sigongzi 阅读(346) 评论(0) 推荐(0) 编辑
USACO 3.2 Contact
摘要： The cows have developed a new interest in scanning the universe outside their farm with radiotelescopes. Recently, they noticed a very curious microwa 阅读全文
posted @ 2016-12-04 13:43 sigongzi 阅读(354) 评论(0) 推荐(0) 编辑
2016年11月27日
USACO 3.1 Humble Numbers
摘要： For a given set of K prime numbers S = {p1, p2, ..., pK}, consider the set of all numbers whose prime factors are a subset of S. This set contains, fo 阅读全文
posted @ 2016-11-27 14:33 sigongzi 阅读(357) 评论(0) 推荐(0) 编辑
2016年10月23日
noip2016模拟赛Day2T3-三点通信
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posted @ 2016-10-23 20:10 sigongzi 阅读(3) 评论(0) 推荐(0) 编辑
noip2016模拟赛Day2T2-净化
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posted @ 2016-10-23 19:55 sigongzi 阅读(4) 评论(0) 推荐(0) 编辑
noip2016模拟赛Day2T1-%
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posted @ 2016-10-23 19:46 sigongzi 阅读(5) 评论(0) 推荐(0) 编辑
noip2016模拟赛Day1T3-跳跃切除子序列
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posted @ 2016-10-23 19:38 sigongzi 阅读(6) 评论(0) 推荐(0) 编辑
noip2016模拟赛Day1T2-函数变换
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posted @ 2016-10-23 19:21 sigongzi 阅读(6) 评论(0) 推荐(0) 编辑
noip2016模拟赛Day1T1-溢出
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posted @ 2016-10-23 19:04 sigongzi 阅读(3) 评论(0) 推荐(0) 编辑
2016年10月4日
大连廿四2016暑假集训day2T3-sequence
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posted @ 2016-10-04 20:49 sigongzi 阅读(10) 评论(0) 推荐(0) 编辑
大连廿四2016暑假集训day2T1-suffix
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posted @ 2016-10-04 19:13 sigongzi 阅读(10) 评论(0) 推荐(0) 编辑
USACO 2.4 Cow Tours
摘要： Farmer John has a number of pastures on his farm. Cow paths connect some pastures with certain other pastures, forming a field. But, at the present ti 阅读全文
posted @ 2016-10-04 15:47 sigongzi 阅读(328) 评论(0) 推荐(0) 编辑
2016年10月3日
USACO 2.3 Cow Pedigrees
摘要： Cow Pedigrees Farmer John is considering purchasing a new herd of cows. In this new herd, each mother cow gives birth to two children. The relationshi 阅读全文
posted @ 2016-10-03 08:33 sigongzi 阅读(542) 评论(0) 推荐(0) 编辑