Educational Codeforces Round 39 (Rated for Div. 2)（A-D）（水題 + 模擬 + 貪心模擬 + DP）

昨天用cf的virtual contest開了一場，作的不是特別理想。半個小時A了三題後就一直划水，今天補了D題。數組 A. Partition You are given a sequence a consisting of n integers. You may partition this sequence into two sequences b and c in such a way t

>>阅读原文<<