TIP102 Unit 1 Session 1 Standard (Click for link to problem statements)

• 💡 Difficulty: Easy
• ⏰ Time to complete: 5 mins
• 🛠️ Topics: List Manipulation, For Loops, Return Statements

Understand what the interviewer is asking for by using test cases and questions about the problem.

• Q: What should the function return if the input list numbers is empty?

  • A: The function should return an empty list [].

• Q: How does the function handle each number in the list?

  • A: The function squares each number and stores the result in a new list.

• The function squared() should take a list of integers and return a new list where each integer is squared.

HAPPY CASE Input: [1, 2, 3] Output: [1, 4, 9] EDGE CASE Input: [] Output: [] 

Plan the solution with appropriate visualizations and pseudocode.

General Idea: Define the function to iterate through the list and square each integer.

1. Define the function `squared(numbers)`. 2. Initialize an empty list `squared_numbers` to store the squared values. 3. Iterate through each number in `numbers`: a. Square the number and append it to `squared_numbers`. 4. Return `squared_numbers`

⚠️ Common Mistakes

• Forgetting to return the new list after processing.

Implement the code to solve the algorithm.

def squared(numbers): # Initialize an empty list to store the squared values squared_numbers = [] # Iterate through each number in the input list for number in numbers: # Square the number and add it to the squared_numbers list squared_numbers.append(number ** 2) # Return the list of squared numbers return squared_numbers