Manthan, Codefest 19 (open for everyone, rated, Div. 1 + Div. 2)-E. Let Them Slide-思维+数据结构 【Problem Description】 \(n\times w\)的方格中,每一行有\(cnt_i\)个数字,每一行的数字都连续的放...
Manthan, Codefest 19 (open for everyone, rated, Div. 1 + Div. 2)-C. Magic Grid-构造 【Problem Description】 给你一个\(n\),构造一个\(n\times n\)的矩阵,使其满足任意一行,或一列的异或值相同。保...