my notations for matrix problems Posted on 七月 17, 2018八月 26, 2019 由BinTAN发布 in matrix or 2D-grid traversal, easier to treat origin at top left as [0,0] and end as [N,N]. less ambiguous to use south/north notation, as “higher/up/right….” are overloaded words Share this:TwitterFacebook赞过:赞 正在加载…… Related