摘要: On a staircase, the i-th step has some non-negative cost cost[i] assigned (0 indexed). Once you pay the cost, you can either climb one or two steps. Y 阅读全文
posted @ 2017-12-18 21:01 Zzz...y 阅读(1916) 评论(0) 推荐(0) 编辑