Python Coding challenge - Day 735| What is the output of the following Python Code?

 

Code Explanation:

1) from functools import reduce

Imports the reduce function from Python’s functools module.

reduce(func, iterable[, initializer]) applies func cumulatively to elements of iterable, reducing it to a single value.

2) nums = [2, 3, 4]

A list nums is created with three integers: [2, 3, 4].

3) product = reduce(lambda x, y: x * y, nums)

Applies the multiplication lambda (x * y) across the list [2, 3, 4].

Step-by-step:

First call: x=2, y=3 → 6

Second call: x=6, y=4 → 24

Final result stored in product is:

24

4) nums.append(5)

Appends 5 to the list.

Now nums = [2, 3, 4, 5].

5) total = reduce(lambda x, y: x + y, nums, 10)

This time we use addition lambda (x + y) with an initializer 10.

Steps:

Start with initial value 10.

10 + 2 = 12

12 + 3 = 15

15 + 4 = 19

19 + 5 = 24

Final result stored in total is:

24

6) print(product, total)

Prints both computed values:

product = 24

total = 24

Final Output

24 24