Level 1Exercise #21

Transpose a matrix

Transpose a non-empty rectangular matrix without NumPy or zip().

Sample Test Cases

Example #1

Input:transpose([[1, 2, 3], [4, 5, 6]])

Output:[[1,4],[2,5],[3,6]]

Reveal Reference Solution

def transpose(matrix: list[list[int]]) -> list[list[int]]:
    return [[row[col] for row in matrix] for col in range(len(matrix[0]))]

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