Python | Maximize Record list

Python | Maximize Record list

Let's dive into a tutorial on maximizing a list of records.

Problem Statement:

Suppose we have a list of records where each record is a list of numbers. We want to replace each number in a record with the maximum value from that record.

Example:

Input: records = [[5, 2, 8], [1, 4, 2], [7, 8, 3]] Output: [[8, 8, 8], [4, 4, 4], [8, 8, 8]]

Step-by-Step Solution:

  1. Iterate Over Each Record: Use a for loop to iterate over each record in the list.

  2. Find Maximum Value in Each Record: Use Python's built-in max function to determine the maximum value for each record.

  3. Replace All Values with the Maximum Value: Construct a new list where each record is replaced with its maximum value.

  4. Repeat for All Records.

Here's the code for this solution:

def maximize_records(records): # Create a new list to store the maximized records maximized_records = [] # Step 1: Iterate over each record for record in records: # Step 2: Find the maximum value in each record max_val = max(record) # Step 3: Replace all values with the maximum value new_record = [max_val] * len(record) # Append the new record to the maximized list maximized_records.append(new_record) # Return the maximized list of records return maximized_records # Test records = [[5, 2, 8], [1, 4, 2], [7, 8, 3]] print(maximize_records(records)) # Expected Output: [[8, 8, 8], [4, 4, 4], [8, 8, 8]]

Explanation:

Given the records [[5, 2, 8], [1, 4, 2], [7, 8, 3]]:

  1. For the record [5, 2, 8], the maximum value is 8. So, the record becomes [8, 8, 8].
  2. For the record [1, 4, 2], the maximum value is 4. Thus, the record becomes [4, 4, 4].
  3. Similarly, for [7, 8, 3], it becomes [8, 8, 8].

The resulting list of records is [[8, 8, 8], [4, 4, 4], [8, 8, 8]].

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