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I applied via Referral and was interviewed in Jun 2024. There were 3 interview rounds.
Hackerrank Coding Test, Leetcode medium questions
HLD test, was asked to design an online coding platform like leetcode
I applied via LinkedIn and was interviewed before Feb 2023. There were 2 interview rounds.
PS DSA, Maps, Linked List, Trees
Had to write an application which processes 5TBs of data in Distributed manner
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To identify whether a binary tree is a Binary Search Tree or not.
Check if the left subtree is a Binary Search Tree
Check if the right subtree is a Binary Search Tree
Check if the root node is greater than all the nodes in the left subtree
Check if the root node is less than all the nodes in the right subtree
Solution for inorder traversal in sorted order without using array
Implement a binary search tree and perform inorder traversal
Use a stack to simulate the recursive function call stack
Maintain a variable to keep track of the previously visited node
Compare the current node with the previously visited node to check if it is in sorted order
Convert a BST to a binary tree with each element replaced by sum of all greater elements.
Traverse the BST in reverse inorder and keep track of the sum of all greater elements.
Replace each node's value with the sum and update the sum.
Recursively perform the above steps on left and right subtrees.
Time complexity: O(n), Space complexity: O(h) where h is the height of the tree.
Find the 2nd highest salary from an employee table in SQL.
Use the SELECT statement to retrieve the salaries in descending order.
Use the LIMIT keyword to limit the result set to the second row.
Use a subquery to exclude the highest salary from the result set.
I am a software engineer with experience in developing web applications and a passion for problem-solving.
Experienced in developing web applications using languages such as Java, Python, and JavaScript
Proficient in using frameworks such as Spring, Django, and React
Strong problem-solving skills and ability to work in a team environment
Passionate about learning new technologies and keeping up with industry trends
Given an array, determine if it follows one of four patterns: increasing, decreasing, increase then decrease, or decrease then increase.
Iterate through the array and compare each element to the previous one.
If all elements are increasing, it follows the increasing pattern.
If all elements are decreasing, it follows the decreasing pattern.
If there is a point where the elements start decreasing after increasing, it follow...
Given an array of distinct positive numbers, find the maximum sum of non-adjacent elements.
Use dynamic programming to keep track of the maximum sum at each index
At each index, choose between including the current element or skipping it
The maximum sum at index i is the maximum of the sum including i-2 and i or the sum excluding i
Return the maximum sum at the last index
Use machine learning algorithms to analyze user behavior and preferences to suggest personalized coupons.
Collect user data such as purchase history, search history, and demographics
Use machine learning algorithms to analyze the data and identify patterns
Create personalized coupon suggestions based on the identified patterns
Regularly update and refine the algorithm to improve accuracy
Allow users to provide feedback on t
I applied via Campus Placement and was interviewed before Jul 2022. There were 4 interview rounds.
Coding test on Hackerrank with easy to medium, well-known problems.
I was interviewed back in 2020 that time they had mettle test which consisted of 2 medium leetcode questions and 10 MCQ related to time complexity
I applied via Walk-in and was interviewed in Nov 2024. There was 1 interview round.
KMP algorithm was asked, need to give efficent solution
I was interviewed in Nov 2024.
I was asked questions about a doubly linked list, specifically regarding how to add songs to a playlist and play them from the start, end, or a specified ID. Additionally, I was required to delete a song and report on the total number of times each song was played overall and by each individual.
I applied via LinkedIn and was interviewed in Oct 2024. There was 1 interview round.
Find the missing smallest positive integer in an array of integers
Sort the array to easily identify missing integers
Iterate through the sorted array to find the smallest missing positive integer
Return the missing integer
Sort an array of strings containing only 0, 1, and 2.
Use a three-way partitioning algorithm like Dutch National Flag algorithm to sort the array in a single pass.
Keep track of three pointers - low, mid, and high to partition the array into three sections.
Swap elements based on their values to achieve the sorted array.
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