Python Coding challenge - Day 388| What is the output of the following Python Code?

 

Step-by-step Execution:

Function outer(x) is defined

It takes one parameter x.

Inside outer, another function inner(y) is defined.

inner(y) returns the sum of x (from outer) and y.

Calling outer(10)

x = 10 is passed as an argument.

The function inner(y) is returned as a closure, meaning it "remembers" the value of x = 10.

Assigning f = outer(10)

Now, f is essentially inner(y) but with x = 10 already captured.

Calling f(5)

This is equivalent to calling inner(5), where y = 5.

inner(y) computes 10 + 5 = 15.

Final Output:

15