摘要：
题目链接： "POJ 1113" Description Once upon a time there was a greedy King who ordered his chief Architect to build a wall around the King's castle. The Ki 阅读全文
摘要：
题目链接： "POJ 1113" Description Your friend to the south is interested in building fences and turning plowshares into swords. In order to help with his o 阅读全文