What is the output of the following Python code?a = [1, 2, 3, 4, 5] b = a[::-2] a[1:3] = [9] print(b, a)

a = [1, 2, 3, 4, 5]
b = a[::-2]
a[1:3] = [9]
print(b, a)

Explanation

a[::-2] gives [5, 3, 1] and slice assignment replaces the two items at indices 1–2 with the single item 9.