摘要：
题目链接：http://poj.org/problem?id=2240 Description Arbitrage is the use of discrepancies in currency exchange rates to transform one unit of a currency i 阅读全文
摘要：
题目链接：http://poj.org/problem?id=3660 Description N (1 ≤ N ≤ 100) cows, conveniently numbered 1..N, are participating in a programming contest. As we al 阅读全文