2026-03-27 09:35:17 +0300 MSK

Matrix Similarity After Cyclic Shifts
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Code

class Solution:
    def areSimilar(self, mat: List[List[int]], k: int) -> bool:
        m, n = len(mat), len(mat[0])
        for i in range(m):
            is_even = i % 2 == 0
            for j in range(n):
                if is_even:
                    new_j = (j - k) % n    
                else:
                    new_j = (j + k) % n
                if mat[i][j] != mat[i][new_j]:
                    return False
        return True