摘要: https://codeforces.com/contest/1324 D. Pair of Topics ai + aj > bi + bj 移项 ai - bi + aj - bj > 0 ,输入a数组和b数组后,做减法构造一个c数组为ai - bi,c数组排序一下,二分找ci - cj 大于0 阅读全文
posted @ 2020-03-19 16:56 AaronChang 阅读(193) 评论(0) 推荐(1)