BZOJ 1742 [Usaco2005 nov]Grazing on the Run 边跑边吃草 + BZOJ 3074 [Usaco2013 Mar]The Cow Run
摘要:题目链接https://www.lydsy.com/JudgeOnline/problem.php?id=1742https://www.lydsy.com/JudgeOnline/problem.php?id=3074双倍经验题题解可以证明,奶牛吃掉的草一...
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BZOJ 1996 [Hnoi2010]chorus 合唱队
摘要:题目链接https://www.lydsy.com/JudgeOnline/problem.php?id=1996题解一个简单的区间dp,f[i][j]f[i][j]f[i][j]代表[i,j][i,j][i,j]区间,最后一个插在左边的方案数,g[i][j...
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