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可以用DP计算好之后直接输出~DP计算好之后利用矩阵压缩，因为计算出来的矩阵式下三角矩阵，可以用一个一维数组保存数据，下标的转换算式：D[i，j] = D[i*(i-1)/2+j]. 这样能节省一半的空间~ AC之后320K 0ms~ Followed by: Post your reply here: |
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