voleon - VO Prep

VO Voleon Interview #6 – Broker Execution Part 2 (Order Matching Engine, Participation Rate, HFT Quant OA)

Input (stdin)An order message is a request to trade shares: New fields: Order rules ✅ Output (stdout) After receiving an order at time T, emit prints: Following constraints: ✅ Example Output Explanation: ✅ Summary This problem simulates an execution algorithm constrained by: ✅ Trailing-minute external traded volume✅ Participation rate limits (PR)✅ Expiration of orders✅ Partial…

VO Voleon Interview #5 – Traded Volume (Sliding-Window Market Data Processing, HFT, Quant OA)

Input (stdin)The program reads the input line by line. Each line must be one of the following message types: • A print represents a trade that took place on the exchange: • A volume check is a request to report the total traded quantities of a security in the preceding minute, as well as its…

VO Voleon Quant Interview Question #4 — Limit Order Book Matching Engine (HFT Trading System | VO Walkthrough)

You have been tasked with creating an exchange where traders can buy and sell Sea Shells. The program reads incoming orders and emits trades. Input (stdin) – the input is a stream of limit orders. Each line is a separate order identified by its line number (starting at 1), with space-delimited fields: Examples: Processing orders…

VO Voleon Quant Interview Question #3 — Kac Ring Simulation (Dynamic Systems | VO Analysis)

A Kac ring is a dynamical system defined as follows: Part 1: Implement a Kac ring with the following interface: Brief summary: Simulate a circular system where balls move one step each tick and flip color only when leaving a marked slot. Build an object with step() and an O(1) color() that returns (white−black)/N(white –…

VO Voleon Interview #2 — Exchange Stream Simulator: print / volume-check / order (quant interview｜HFT｜matching & risk)

The program reads the input line by line from stdin.Each line is exactly one of the following message types: Fields (space-delimited): An order is: Output For each volume-check for security S at time T, emit exactly one line: Where: A volume-check response must be printed immediately before reading the next input line. For each order…

VO Voleon Interview #1 — Minimum Machines to Cover Slope (Greedy Interval Cover) – voleon OA – interview prep

Ski season is approaching! You work at a ski resort and must ensure the slopes are fully covered with snow. You have a slope with indices from 0…N, and a collection of snow-making machines installed along the slope.Each machine is a tuple (index, range) meaning the machine sits at index and can cover the slope…