Matrix Rotation (CODEEVAL) - rochefort's blog

行列回転の問題。今回は面白かったです。 CHALLENGE DESCRIPTION: You are given a 2D N×N matrix. Each element of the matrix is a letter: from ‘a’ to ‘z’. Your task is to rotate the matrix 90° clockwise: a b c g d a d e f => h e b g h i i f c INPUT SAMPLE: a b c d a b c d e f g h i j k l m n o p a b c d e f g h i OUTPUT SAMPLE: c a d b m i e a n j f b o k g c p l h d g d a h e b i f c CONSTRAINTS: The N size of the matri

[rochefort]

self.reverse.transpose これすごい