The coding question I received was: Given a tree, calculate the sum of the distances from each node to all other nodes. **My Approach:** 1. **Baseline (Non-Optimal):** * I initially suggested performing a BFS/DFS from each node to calculate the sum of distance...
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The coding question I got was: 1) **Main Problem (similar to LeetCode 778 - Swim in Rising Water)** Given a grid representing a state map, find the path from the start to the end where the path cost is not the sum of the paths, but the "maximum/worst value enc...
## Preparation Tips & Key Takeaways ### What I Learned - I need to be prepared to discuss my past projects in detail, focusing on the impact and challenges. - I should have a solid understanding of experimental design principles, especially in the context of A...
I interviewed for a backend role and was ultimately rejected after four rounds. Here's a breakdown of my experience: **Round 1: DSA (Topological Sort)** I was asked a standard topological sort problem, similar to a combination of Course Schedule I and II. The...
The coding question I got was: Find the minimum number of workers needed to achieve maximum efficiency using binary search. **My approach:** 1. I first clarified the constraints and edge cases. 2. Then I implemented binary search to find the optimal number of...
The interviewer gave a short product catalog scenario and then introduced the task. The question was Find Highest Shared Product ID: https://www.chillinterview.com/learn/coding-interview-questions/find-highest-shared-product-id. I was asked to determine which...
The interviewer opened by asking about my experience with dashboards and high-volume query systems. The question was Fast Interval Coverage Counter: https://www.chillinterview.com/learn/coding-interview-questions/fast-interval-coverage-counter. I was given ran...
## Technical Phone Interview Questions ### Question 1: 2D Array Processing The interviewer asked me to find the minimum value among groups in a 2D array. Each group was a 3x3 grid. If any cell in a grid contained '1', that grid was invalid and should be ignore...
## Preparation Tips & Key Takeaways ### What I Learned - Understanding data structures and algorithms is crucial for solving coding problems efficiently. - Clearly communicating my approach and thought process to the interviewer is essential. - Thoroughly test...
## Preparation Tips & Key Takeaways ### What I Learned - It's important to clarify the problem thoroughly before starting to code. - Dry running the code helps catch bugs early on. - Discussing time and space complexity shows a good understanding of the soluti...
