Python Coding Challenge - Question with Answer (ID -170726)

 

Explanation:

1. print()

print() is a built-in Python function.

It is used to display the result on the screen.

Syntax:

print(value)

2. 2 ** 3 ** 2

** is the exponentiation (power) operator in Python.

It means raise a number to the power of another number.

Example:

2 ** 3

Output:

8

Because:

2 × 2 × 2 = 8

3. Order of Evaluation

The exponentiation operator (**) has right-to-left associativity.

So Python evaluates:

2 ** 3 ** 2

as:

2 ** (3 ** 2)

Not as:

(2 ** 3) ** 2

4. Step-by-Step Calculation

Step 1: Calculate the rightmost exponent

3 ** 2

Result:

9

Step 2: Replace the result

Now the expression becomes:

2 ** 9

Step 3: Calculate 2 ** 9

2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2

Result:

512

5. print(512)

After evaluating the expression, Python changes it to:

print(512)

The print() function displays:

512

Execution Flow

Step Operation Result

1 3 ** 2 9

2 2 ** 9 512

3 print(512) Displays 512

Final Output

512

Book: 1000 Days Python Coding Challenges with Explanation