题目

英语翻译
The elimination rounds are divided into main and additional.Each of the main elimination rounds consists of c problems,the winners of the round are the first n people in the rating list.Each of the additional elimination rounds consists of d problems.The winner of the additional round is one person.Besides,k winners of the past finals are invited to the finals without elimination.
As a result of all elimination rounds at least n·m people should go to the finals.You need to organize elimination rounds in such a way,that at least n·m people go to the finals,and the total amount of used problems in all rounds is as small as possible.

提问时间：2020-12-30

答案

淘汰环节分为两个环节,即主赛环节和加赛环节.主赛环节由c级问题组成,每轮赢家（n个）第一批进入入赛名单.加赛环节为d级问题,赢家只有一个.此外,由几轮加赛胜出的k个赢家免淘汰直接进入决赛.在所有淘汰赛结束后,至少n...