The online assessment included these two coding questions: 1. **Price Discount:** Given a `prices` array, find the first number to the right of each element that is smaller than the element itself. The difference between these two numbers is the discount. If t...
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The question I got was: Given a sorted array containing positive and negative numbers, sort the array by the square of each number. I initially suggested a heap-based solution. The interviewer asked me to optimize it. I proposed a two-pointer approach, but the...
The problem description is as follows: A disk stores hierarchical data in the form of an undirected tree. The tree has `tree_nodes` nodes, numbered from `0` to `tree_nodes - 1`, with node `0` as the root. Each node stores a character given by the array `arr`,...
The interviewer asked whether I had worked with graph-like systems before starting the problem. The question was Signal Amplification Network: https://www.chillinterview.com/learn/coding-interview-questions/signal-amplification-network. I was given a network a...
I had an onsite interview. Here's what I remember: **Round 1:** The coding question was LeetCode 981. The follow-up questions were: How to handle 1M+ requests per second? How to ensure thread safety? What is the amortized time complexity? **Round 2:** This was...
The interviewer framed the prompt around analyzing visitors moving through product categories. The question was Shortest Visitor Window With Enough Categories: https://www.chillinterview.com/learn/coding-interview-questions/shortest-visitor-window-with-enough-...
I was asked to design the core classes and interfaces for a Cart & Pricing Engine that handles item customizations, marketplace dynamics (surge pricing), promotions, and membership benefits. The system needed to support adding items, applying customizations, a...
I recently completed my interviews for a Mid-Level Software Engineer position. Overall, the experience was decent, and the questions were common interview questions. **Phone Screen:** I was asked a question similar to Top K. I used a priority queue to solve it...
I recently completed a coding round at Uber for a Senior SDE position. I had one hour to solve two coding questions. The first question was an easy problem related to when to buy and sell stock, which I recognized as a frequently asked interview question. The...
The coding question I got was: Give one permutation p of 1...n, a number k (1<=k<=n) is balanced if there is a subarray p[l...r] such that the subarray is a permutation of 1..k. Find out if k is balanced for every k and returns a binary string. **My approach:*...
