2017年12月16日
Codeforces Round #450 (Div. 2)ABC
摘要： A. Find Extra One You have n distinct points on a plane, none of them lie on OY axis. Check that there is a point after removal of which the remaining 阅读全文
posted @ 2017-12-16 18:47 starry_sky 阅读(271) 评论(0) 推荐(0) 编辑