Python Coding challenge - Day 472| What is the output of the following Python Code?

 

Code Explanation:

Importing reduce:

The reduce() function is part of the functools module. It is used to apply a binary function (a function that takes two arguments) cumulatively to the items of an iterable, from left to right, reducing the iterable to a single value.

The Iterable (numbers):

The iterable in this case is the list numbers = [1, 2, 3, 4].

The Function (lambda x, y: x + y):

A lambda function is defined, which takes two arguments (x and y) and returns the sum (x + y). This is the function that reduce() will apply cumulatively to the elements in the list.

How reduce() Works:

First iteration:

x = 1, y = 2 (first two elements in the list)

The lambda function is applied: 1 + 2 = 3

Second iteration:

x = 3 (result from the previous iteration), y = 3 (next element in the list)

The lambda function is applied: 3 + 3 = 6

Third iteration:

x = 6 (result from the previous iteration), y = 4 (next element in the list)

The lambda function is applied: 6 + 4 = 10

Final Result:

After all the iterations, the final result is 10, which is the sum of all the numbers in the list.

Output:

10