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一次AC~只要判断这两个是否满足就可以了: 1.每个数字只能出栈一次 2.某个数字出栈后,比它小的数字,要么已经出栈,要么在后面从大到小出栈 (只要对每个数字a[i],对之后出现的数字,只要比a[i]小的,必须从大到小出现,可用临时变量pre) 还有注意Yes No大小写 以及每两次输入n之间要空一行,最后一次不用空行 Followed by: Post your reply here: |
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