技术

从这一题开始,, 以后题目我就不贴上来了… 自己去看吧..

这一题开始肯本看不懂,, 后来是反反复复看标程看懂了..

首先要理解这么一个式子吧(算是式子吧“)

已经求出了j-1个丑数,, 现在求第j个丑数

对于每一个素数p乘以一个最小的丑数, 能使积大于第j-1个丑数

在这些乘积中寻[……]

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Score Inflation

The more points students score in our contests, the happier we here at the USACO are. We try to design our contests so that people can[……]

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Agri-Net
Russ Cox
Farmer John has been elected mayor of his town! One of his campaign promises was to bring internet connectivity to all farms in the[……]

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Fractions to Decimals

Write a program that will accept a fraction of the form N/D, where N is the numerator and D is the denominator and print the dec[……]

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Bessie Come Home
Kolstad & Burch
It’s dinner time, and the cows are out in their separate pastures. Farmer John rings the bell so they will start[……]

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Longest Prefix
IOI’96
The structure of some biological objects is represented by the sequence of their constituents denoted by uppercase letters. Biol[……]

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Zero Sum

Consider the sequence of digits from 1 through N (where N=9) in increasing order: 1 2 3 … N.

Now insert either a ‘+’ for addition or a ‘-‘[……]

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Farmer John is considering purchasing a new herd of cows. In this new herd, each mother cow gives birth to two children. The relationships among the c[……]

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Money Systems

The cows have not only created their own government but they have chosen to create their own money system. In their own rebellious way,[……]

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Broken Necklace
You have a necklace of N red, white, or blue beads (3<=N<=350) some of which are red, others blue, and others white, arranged at[……]

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