Class Solution


  • public class Solution
    extends Object
    498 - Diagonal Traverse.

    Medium

    Given an m x n matrix mat, return an array of all the elements of the array in a diagonal order.

    Example 1:

    Input: mat = [[1,2,3],[4,5,6],[7,8,9]]

    Output: [1,2,4,7,5,3,6,8,9]

    Example 2:

    Input: mat = [[1,2],[3,4]]

    Output: [1,2,3,4]

    Constraints:

    • m == mat.length
    • n == mat[i].length
    • 1 <= m, n <= 104
    • 1 <= m * n <= 104
    • -105 <= mat[i][j] <= 105
    • Constructor Detail

      • Solution

        public Solution()
    • Method Detail

      • findDiagonalOrder

        public int[] findDiagonalOrder​(int[][] mat)