2.9(Clear Cold Water)

http://noi.openjudge.cn/ch0306/2392/
描述
The steamy, sweltering summers of Wisconsin's dairy district stimulate the cows to slake their thirst. Farmer John pipes clear cold water into a set of N (3 <= N <= 99999; N odd) branching pipes conveniently numbered 1..N from a pump located at the barn. As the water flows through the pipes, the summer heat warms it. Bessie wants to find the coldest water so she can enjoy the weather more than any other cow. She has mapped the entire

2.9(Clear Cold Water)最先出现在Python成神之路。