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[ABC264F]MonochromaticPathSolution目录[ABC264F]MonochromaticPathSolution更好的阅读体验戳此进入题面SolutionCodeUPD更好的阅读体验戳此进入题面给定一个$
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ProblemStatementWehaveagridwith$H$rowsand$W$columns.Eachsquareispaintedeitherwhiteorblack.Foreachintegerpair$(i,j)$suchthat$1\leq
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DPF-MonochromaticPath(atcoder.jp)题意在n*m（1<=n,m<=2000）的网格图中，每个格子有0，1两种，有两种操作将第i行元素反转，花费r[i]代价将第j行元素反转，花