Convert 1D Array Into 2D Array solution leetcode

For Solution
Click Here!
You are given a 0indexed 1dimensional (1D) integer array original
, and two integers, m
and n
. You are tasked with creating a 2dimensional (2D) array with m
rows and n
columns using all the elements from original
.
The elements from indices 0
to n  1
(inclusive) of original
should form the first row of the constructed 2D array, the elements from indices n
to 2 * n  1
(inclusive) should form the second row of the constructed 2D array, and so on. Convert 1D Array Into 2D Array solution leetcode
Return an m x n
2D array constructed according to the above procedure, or an empty 2D array if it is impossible.
Convert 1D Array Into 2D Array solution leetcode
Input: original = [1,2,3,4], m = 2, n = 2 Output: [[1,2],[3,4]] Explanation: The constructed 2D array should contain 2 rows and 2 columns. The first group of n=2 elements in original, [1,2], becomes the first row in the constructed 2D array. The second group of n=2 elements in original, [3,4], becomes the second row in the constructed 2D array.
Convert 1D Array Into 2D Array solution leetcode
Input: original = [1,2,3], m = 1, n = 3 Output: [[1,2,3]] Explanation: The constructed 2D array should contain 1 row and 3 columns. Put all three elements in original into the first row of the constructed 2D array.
Convert 1D Array Into 2D Array solution leetcode
Input: original = [1,2], m = 1, n = 1 Output: [] Explanation: There are 2 elements in original. It is impossible to fit 2 elements in a 1x1 2D array, so return an empty 2D array.
Convert 1D Array Into 2D Array solution leetcode
Input: original = [3], m = 1, n = 2 Output: [] Explanation: There is 1 element in original. It is impossible to make 1 element fill all the spots in a 1x2 2D array, so return an empty 2D array.
Constraints:
1 <= original.length <= 5 * 10^{4}
1 <= original[i] <= 10^{5}
1 <= m, n <= 4 * 10^{4}

For Solution
Click Here!