Python Coding challenge - Day 5| What is the output of the following Python Code?

 

Explanation:

Step 1: Defining the Function

The function subtract(a, b) takes two arguments, a and b, and returns the result of a - b.

Step 2: Understanding the Nested Function Call

The key to understanding this code is evaluating the inner function call first.

Inner Function Call:

subtract(4, 2)

Here, a = 4 and b = 2.

The function returns:

4 - 2 = 2

Outer Function Call:

Now substitute the result of the inner call (2) into the outer function call:

subtract(7, 2)

Here, a = 7 and b = 2.

The function returns:

7 - 2 = 5

Step 3: Storing and Printing the Result

The result of the entire expression, 5, is stored in the variable result:

result = 5

print(result)  
Final Output:

Output: 5