Convert 1D Array Into 2D Array
Try to solve the Convert 1D Array Into 2D Array problem.
Statement
Given a 0-indexed 1-dimensional (1D) integer array original
and two integers, m
 and n
, your task is to reshape the array into a 2-dimensional (2D) array with m
 rows and n
 columns while preserving the order of elements in original
.
To construct the 2D array, the first n
 elements in the original
 should populate the first row. The next n
 elements should populate the second row, and so on, until all rows are filled. Your goal is to return the resulting m x n
 2D array.
Note: If it is impossible to create anÂ
m x n
 array (e.g., if the total number of elements in theÂoriginal
 is not equal toÂm * n
), return an empty 2D array.
Constraints:
original.length
original[i]
m
,n
Examples
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