Interview Questions

Rahul .. - "''' Problem Statement: Design a simplified Robinhood-like stock trading platform. Requirements: User Management: createuser(userid, name, initial_balance): Create user with cash balance getbalance(userid): Get user's cash balance deposit(user_id, amount): Add funds to account withdraw(user_id, amount): Withdraw funds (if sufficient balance) Stock Operations: updatestockprice(symbol, price): Update current price of a stock getstockprice(symb"See full answer

Ramachandra N. - "from collections import deque from typing import List def longestsubarraydifflessthan_n(nums: List[int], N: int) -> int: """ Find the length of the longest contiguous subarray such that the difference between any two elements in the subarray is less than N. Equivalent condition: max(subarray) - min(subarray) < N Approach (Optimal): Sliding window with two monotonic deques: max_d: decreasing deque of indices (front is index of current max"See full answer

Vinit N. - "Problem & goal People need a simple way to create documents, collaborate in real time, and never worry about version control or losing work. Traditional word processors were powerful but slow, file-based, and hard to collaborate in. Target users Knowledge workers, students, and teams who write frequently and collaborate often, sometimes across time zones and devices. Core principles Make writing fast, collaboration effortless, and complexity invisible unless the user needs it. **K"See full answer