Class Solution


  • public class Solution
    extends Object
    1424 - Diagonal Traverse II.

    Medium

    Given a 2D integer array nums, return all elements of nums in diagonal order as shown in the below images.

    Example 1:

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

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

    Example 2:

    Input: nums = [[1,2,3,4,5],[6,7],[8],[9,10,11],[12,13,14,15,16]]

    Output: [1,6,2,8,7,3,9,4,12,10,5,13,11,14,15,16]

    Constraints:

    • 1 <= nums.length <= 105
    • 1 <= nums[i].length <= 105
    • 1 <= sum(nums[i].length) <= 105
    • 1 <= nums[i][j] <= 105
    • Constructor Detail

      • Solution

        public Solution()
    • Method Detail

      • findDiagonalOrder

        public int[] findDiagonalOrder​(List<List<Integer>> nums)