Tracxn interview experience Real time questions & tips from candidates to crack your interview
Fullstack Developer
Tracxn
1 rounds | 1 Coding
problems
Rejected
Interview preparation journey
Journey
Over the past few months, I made it a routine to solve 2–3 DSA problems daily, focusing on both basic and medium-level questions. This consistent practice not only strengthened my problem-solving skills but also gave me a deeper understanding of core data structures and algorithms.
Preparation
Topics: HTML, JavaScript, Node.js, DSA
Application process
Where: Coding Ninjas Placement Cell
Eligibility: NA, (Salary package: 6 LPA)
Interview rounds
01
Round
Medium
Face to Face
Duration
Interview date16 Apr 2025
Coding problem1
1. Form the Largest Number from Array of Strings
You are given an array of strings, where each string represents a non-negative integer. Rearrange the elements of the array such that when concatenated, they form the largest possible number. Return the result as a string.
Example:
Input: ["54", "546", "548", "60"]
Output: "6054854654"
Problem approach
Since the interviewer instructed me not to use any built-in functions, I implemented a bubble sort algorithm to arrange the given array of strings in decreasing order. After completing the sorting, I concatenated all the elements sequentially, which resulted in forming the largest possible number.
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Skill covered: Programming
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