Convert an Array Into a 2D Array With Conditions - Practice Coding | SlaveCode
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2610. Convert an Array Into a 2D Array With Conditions
Medium
30 Points
Array
Hash Table
You are given an integer array nums. You need to create a 2D array from nums satisfying the following conditions:
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.
Examples
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
2610. Convert an Array Into a 2D Array With Conditions
Medium
30 Points
Array
Hash Table
You are given an integer array nums. You need to create a 2D array from nums satisfying the following conditions:
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.
Examples
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.