摘要: On a N x N grid of cells, each cell (x, y) with 0 <= x < N and 0 <= y < N has a lamp. Initially, some number of lamps are on. lamps[i] tells us the lo 阅读全文
posted @ 2019-02-26 12:38 Review->Improve 阅读(593) 评论(0) 推荐(0) 编辑