E-Bishop2https://atcoder.jp/contests/abc246/tasks/abc246_e 思想BFS遍历。 Codehttps://atcoder.jp/contests/abc246/submissions/38443616boolpts[15

ABC246EBishop2Solution目录ABC246EBishop2Solution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有障碍的网格图，.为空地，#为障碍

ProblemStatementWehavean$N\timesN$chessboard.Let$(i,j)$denotethesquareatthe$i$-throwfromthetopand$j$-thcolumnfromtheleftofthisbo