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示例：nums = [2,1,2,4,3] → res = [4,2,4,-1,-1]。。爱思助手下载最新版本对此有专业解读
Not Equal: Everything in this space must be different. The answer is 6-1, placed vertically; 6-3, placed horizontally; 5-0, placed horizontally; 1-4, placed vertically; 2-4, placed horizontally.，更多细节参见搜狗输入法2026
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