Transform array to sorted array
Last updated: February 12, 2026
Quick Overview
Given an unsorted array of integers, write a function that transforms the array into a sorted array in ascending order. The function should take the unsorted array as input and return a new array containing the same integers sorted. Ensure that your solution is efficient and handles edge cases, such as empty arrays or arrays with duplicate values.
Figma
February 12, 202646
8
743 solved
Given an unsorted array of integers, write a function that transforms the array into a sorted array in ascending order. The function should take the unsorted array as input and return a new array containing the same integers sorted. Ensure that your solution is efficient and handles edge cases, such as empty arrays or arrays with duplicate values.
Figma uses this problem in the Technical Screen to evaluate your algorithmic thinking. They expect you to discuss multiple approaches, analyze trade-offs between them, and implement the optimal solution with clean, readable code.
What the Interviewer Expects
- Identify the correct data structure and algorithm for the problem
- Write clean, bug-free code with proper variable naming
- Analyze time and space complexity correctly
- Handle basic edge cases (empty input, single element)
- Communicate your thought process while coding
Key Topics to Cover
How to Approach This
- Clarify input constraints and edge cases before writing code.
- Walk through your approach verbally and confirm with the interviewer before coding.
- Start with a brute force solution, then optimize. Mention time and space complexity.
- Test your solution with examples, including edge cases like empty input or duplicates.
- Consider common patterns: sliding window, two pointers, hash map, BFS/DFS, dynamic programming.
Possible Follow-up Questions
- What happens if the input contains duplicates?
- What if the input doesn't fit in memory?
- Can you solve this iteratively instead of recursively (or vice versa)?
- What is the worst-case input for your solution?
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Practice DSA ProblemsSample Answer
Problem Analysis
The problem requires sorting an unsorted array of integers. Given the nature of sorting, we can utilize comparison-based sorting algorithms such as Quick Sort, Merge Sort, or even built-in sorting fun...
Approach
To transform the unsorted array into a sorted array, we will use Python’s built-in sorted() function which is based on Timsort. This algorithm is efficient and handles various edge cases well.
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