Package g2601_2700.s2610_convert_an_array_into_a_2d_array_with_conditions

Class Solution

java.lang.Object
g2601_2700.s2610_convert_an_array_into_a_2d_array_with_conditions.Solution
public class Solution extends java.lang.Object
2610 - Convert an Array Into a 2D Array With Conditions.

Medium

You are given an integer array nums. You need to create a 2D array from nums satisfying the following conditions:

  • The 2D array should contain only the elements of the array nums.
  • Each row in the 2D array contains distinct integers.
  • The number of rows in the 2D array should be minimal.

Return the resulting array. If there are multiple answers, return any of them.

Note that the 2D array can have a different number of elements on each row.

Example 1:

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

Output: [[1,3,4,2],[1,3],[1]]

Explanation: We can create a 2D array that contains the following rows: - 1,3,4,2 - 1,3 - 1 All elements of nums were used, and each row of the 2D array contains distinct integers, so it is a valid answer. It can be shown that we cannot have less than 3 rows in a valid array.

Example 2:

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

Output: 4,3,2,1

Explanation: All elements of the array are distinct, so we can keep all of them in the first row of the 2D array.

Constraints:

  • 1 <= nums.length <= 200
  • 1 <= nums[i] <= nums.length

  • Constructor Summary

    Constructors
    Constructor
    Description
    Solution()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    java.util.List<java.util.List<java.lang.Integer>>
    findMatrix(int[] nums)
     

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • Solution

      public Solution()

  • Method Details

    • findMatrix

      public java.util.List<java.util.List<java.lang.Integer>> findMatrix(int[] nums)