leetcode766. Toeplitz Matrix
2022-02-13 09:39 作者:您是打尖儿还是住店呢 | 我要投稿
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: trueExplanation: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: falseExplanation:The diagonal "[1, 2]" has different elements.
Success
Details
Runtime: 1 ms, faster than 85.89% of Java online submissions for Toeplitz Matrix.
Memory Usage: 46.4 MB, less than 5.24% of Java online submissions for Toeplitz Matrix.
