2018年10月20日
贪心Crossing river
摘要： 英文题目： A group of N people wishes to go across a river with only one boat, which can at most carry two persons. Therefore some sort of shuttle arrangem 阅读全文
posted @ 2018-10-20 17:00 冲破天际 阅读(105) 评论(0) 推荐(0) 编辑