12 2016 档案

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(579) 评论(0) 推荐(0)
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(753) 评论(0) 推荐(0)
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(550) 评论(0) 推荐(0)
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(409) 评论(0) 推荐(0)
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(501) 评论(0) 推荐(0)
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(358) 评论(0) 推荐(0)
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(367) 评论(0) 推荐(0)