9 RegisterLog in Sign up with one click: Facebook Twitter Google Share on Facebook structural formula Thesaurus Medical Encyclopedia Wikipedia Related to structural formula:condensed structural formula structural formula n. A chemical formula that shows how the atoms and bonds in a molecule are arrang...
此题的标算应该是状压dp,因为按行是严格递增的,所以可以 按列划分阶段,状态存储这一行用了哪些数即可。 其实这题还可以直接套公式。 行和列都严格递增的杨氏矩阵 方案数是 行严格递增列不严格自增,只能填数1-r的方案数是 参考下面的文章 https://en.wikipedia.org/wiki/Young_tableau https://en.wikipedia....