321. Create Maximum Number

[F4NT0]

You are given two integer arrays nums1 and nums2 of lengths m and n respectively. nums1 and nums2 represent the digits of two numbers. You are also given an integer k.

Create the maximum number of length k <= m + n from digits of the two numbers. The relative order of the digits from the same array must be preserved.

Return an array of the k digits representing the answer.

Example 1:

• Input: nums1 = [3,4,6,5], nums2 = [9,1,2,5,8,3], k = 5
• Output: [9,8,6,5,3]

Example 2:

• Input: nums1 = [6,7], nums2 = [6,0,4], k = 5
• Output: [6,7,6,0,4]

Example 3:

• Input: nums1 = [3,9], nums2 = [8,9], k = 3
• Output: [9,8,9]

Constraints:

• m == nums1.length
• n == nums2.length
• 1 <= m, n <= 500
• 0 <= nums1[i], nums2[i] <= 9
• 1 <= k <= m + n