accessing rows and columns in a 2d array and insert method(python)

In Python, a 2D array (or matrix) is essentially a list of lists. You can access elements, rows, and columns in a 2D array using indexing.

Here's how you can do it:

Accessing an element: To access an element in a 2D array, you use two indices. The first index is for the row and the second index is for the column. For example, matrix[i][j] will give you the element at the ith row and jth column.

Accessing a …

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