Oliver Eyton-Williams 0bd52f8bd1

and change all the challenges to new `md` format.

2020-11-27 10:02:05 -08:00

id, title, challengeType, videoId

id	title	challengeType	videoId
5e9a0a8e09c5df3cc3600ed7	Copying Arrays Warning	11	iIoQ0_L0GvA

--question--

--text--

What is the value of a after running the following code?

import numpy as np

a = np.array([1, 2, 3, 4, 5])
b = a
b[2] = 20

[1 2 3 4 5]

[1 2 20 4 5]

[1 20 3 4 5]