Reshape to a Matrix

easynumpy_basics

Implement to_matrix(x, rows).

Given a 1D array x whose length is divisible by rows, reshape it into a 2D array with rows rows (row-major / C order). Let NumPy infer the number of columns by passing -1 for that dimension. No for/while loops.

Constraints

no for/while loops

Your solution

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Hints

Hint 1

Pass -1 for the unknown dimension: x.reshape(rows, -1) lets NumPy compute the columns.