Python Coding challenge - Day 759| What is the output of the following Python Code?

 

Code Explanation:

1) from functools import reduce

Imports the reduce function from the functools module.

reduce(func, iterable[, initializer]) applies func cumulatively to the items of iterable, producing a single value.

2) nums = [2, 3, 4, 5]

Creates a list named nums containing the integers 2, 3, 4, 5.

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

Uses reduce with a multiplication lambda to multiply all elements together.

No initializer provided → the first call uses the first two list items as x and y.

Stepwise: (2*3)=6, (6*4)=24, (24*5)=120.

Result assigned to product → 120.

4) nums.remove(3)

Mutates the nums list by removing the first occurrence of the value 3.

After this operation nums becomes [2, 4, 5].

Note: remove() modifies the list in place and raises ValueError if the value is not found.

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

Uses reduce with an addition lambda and an initializer 10.

With an initializer, the reduction starts from 10 and then adds each element of nums.

Stepwise: 10 + 2 = 12, 12 + 4 = 16, 16 + 5 = 21.

Result assigned to s → 21.

6) print(product, s)

Prints the two computed values: product and s.

Output:

120 21

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