Essential 2D Array Algorithms for Competitive Programming

Matrix Rotation Techniques Matrix rotation involves reorganizing elements in a square grid through geometric transformations. The fundamental approach combines transposition with selective reversal operations. Clockwise 90-Degree Rotation The process involves two sequential transformations: first transpose the matrix, then reverse each row hori ...

Posted on Sat, 01 Aug 2026 16:32:16 +0000 by slipmatt2002