Watch 10 video solutions for Toeplitz Matrix, a easy level problem involving Array, Matrix. This walkthrough by Programmer Mitch has 7,700 views views. Want to try solving it yourself? Practice on FleetCode or read the detailed text solution.
Given an m x n matrix, return true if the matrix is Toeplitz. Otherwise, return false.
A matrix is Toeplitz if every diagonal from top-left to bottom-right has the same elements.
Example 1:
Input: matrix = [[1,2,3,4],[5,1,2,3],[9,5,1,2]] Output: true Explanation: In the above grid, the diagonals are: "[9]", "[5, 5]", "[1, 1, 1]", "[2, 2, 2]", "[3, 3]", "[4]". In each diagonal all elements are the same, so the answer is True.
Example 2:
Input: matrix = [[1,2],[2,2]] Output: false Explanation: The diagonal "[1, 2]" has different elements.
Constraints:
m == matrix.lengthn == matrix[i].length1 <= m, n <= 200 <= matrix[i][j] <= 99
Follow up:
matrix is stored on disk, and the memory is limited such that you can only load at most one row of the matrix into the memory at once?matrix is so large that you can only load up a partial row into the memory at once?