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USACO section1.1题解

Cow PedigreesFROM: Silviu Ganceanu – 2003DESCRIPTION: 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

Zero SumDESCRIPTION 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 `-' for subtraction or a ` ' [blank]

Money SystemsDESCRIPTION The cows have not only created their own government but they have chosen to create their own money system. In their own rebellious way, they are curious about values of coin

Controlling CompaniesDESCRIPTION Some companies are partial owners of other companies because they have acquired part of their total shares of stock. For example, Ford at one point owned 12% of Mazd