2017年12月17日

Educational Codeforces Round 34 (Rated for Div. 2) D - Almost Difference(高精度)

摘要： D. Almost Difference Let's denote a function You are given an array a consisting of n integers. You have to calculate the sum of d(ai, aj) over all pa 阅读全文

posted @ 2017-12-17 21:20 欲儿很轻狂 阅读(201) 评论(0) 推荐(0)

Codeforces Round #452 (Div. 2) C. Dividing the numbers(水)

摘要： C. Dividing the numbers Petya has n integers: 1, 2, 3, ..., n. He wants to split these integers in two non-empty groups in such a way that the absolut 阅读全文

posted @ 2017-12-17 20:55 欲儿很轻狂 阅读(222) 评论(0) 推荐(0)

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