Maintainable and Scalable Code | Dataford Interview Questions

How do you ensure that your code is maintainable and scalable?

For this hands-on exercise, implement a function that returns the k most frequent integers while keeping the design modular, readable, and efficient. When frequencies tie, return the smaller integer first. Return results ordered by decreasing frequency, then increasing value.

The function accepts a list of integers and k, and returns a list of at most k integers. Empty input or k = 0 returns an empty list.

Constraints

0 <= len(nums) <= 5000
0 <= k <= number of distinct values
Values fit within a signed 32-bit integer
Return at most k distinct values

Function Signature

def top_k_frequent(nums, k):

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Problem

How do you ensure that your code is maintainable and scalable?

The function accepts a list of integers and k, and returns a list of at most k integers. Empty input or k = 0 returns an empty list.

Constraints

0 <= len(nums) <= 5000
0 <= k <= number of distinct values
Values fit within a signed 32-bit integer
Return at most k distinct values

Function Signature

def top_k_frequent(nums, k):

Your question is Maintainable and Scalable Code. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.