Python Coding Challenge - Question with Answer (01271025)

Explanation:

1. Set Creation

s = {1,2,3,4,4}

What happens: Creates a set s.

Key points:

Sets store unique elements only.

Duplicate 4 is removed automatically.

Final set: {1, 2, 3, 4}.

2. Initialize Result Variable

res = 1

What happens: Creates a variable res to hold the product of elements.

Key point: Initialized as 1 because multiplying by 0 would make the product zero.

3. Loop Through Set

for i in s:

What happens: Starts a loop to iterate over each element in the set s.

Key point:

Sets are unordered, so elements can come in any order.

Every unique element is included exactly once.

4. Multiply Elements

res *= i

What happens: Multiplies the current element i with the running product res.

Step by step:

res = 1 * 1 = 1

res = 1 * 2 = 2

res = 2 * 3 = 6

res = 6 * 4 = 24

Key concept: *= is shorthand for res = res * i.

5. Print the Result

print(res)

What happens: Outputs the final product of all elements.

Output: 24

 

Python for Software Testing: Tools, Techniques, and Automation