Practice Convert 1D Array Into 2D Array
Read the task, work through the examples, and check your approach against the constraints. Use the original LeetCode task for coding and submissions.
Problem Statement
You are given a 0-indexed 1-dimensional (1D) integer array original, and two integers, m and n. You are tasked with creating a 2-dimensional (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. Return an m x n 2D array constructed according to the above procedure, or an empty 2D array if it is impossible.
Source: Convert 1D Array Into 2D Array on LeetCode. Use the original task for its coding environment and submissions.
Examples
# Example 1
original = [1,2,3,4], m = 2, n = 2
[[1,2],[3,4]]
# Example 2
original = [1,2,3], m = 1, n = 3
[[1,2,3]]
# Example 3
original = [1,2], m = 1, n = 1
[]
Constraints
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