摘要:
#1239 : Fibonacci #1239 : Fibonacci 时间限制:10000ms 单点时限:1000ms 内存限制:256MB 描述 Given a sequence {an}, how many non-empty sub-sequence of it is a prefix of 阅读全文
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#1237 : Farthest Point #1237 : Farthest Point 时间限制:5000ms 单点时限:1000ms 内存限制:256MB 描述 Given a circle on a two-dimentional plane. Output the integral poi 阅读全文