老实说前面那个帖子的排列不是按你这个顺序也过了...就很奇怪.虽然我觉得你的贪心更好) https://ac.nowcoder.com/acm/contest/view-submission?submissionId=46450650 https://ac.nowcoder.com/acm/contest/view-submission?submissionId=46450655