Solution: Convert 1D Array Into 2D Array
Understand how to reshape a 1D array into a 2D array with specified rows and columns by maintaining the element order. Learn to validate array size compatibility and efficiently populate the new matrix structure, enhancing your skills in matrix operations and coding interview problem solving.
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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 an
m x narray (e.g., if the total number of elements in theoriginalis not equal tom * n), return an empty array.
Constraints: ...