Practice Robinhood Coding Question | Real Coding Interviews | Hack2hire

NewDark mode is now available across the siteSee what's new

Question Bank Pricing Blog Forum

Quick Summary

Simulate sequential buy and sell orders against a fractional stock inventory.
Parse mixed quantity formats and apply modulo arithmetic to maintain fractional share bounds.
Return the updated inventory sorted by stock symbol.

What This Tests

Hash table usage for efficient state tracking
String parsing and unit conversion
Modulo arithmetic and ceiling/floor operations
Sequential simulation with conditional branching

Common Patterns

Hashing

Sorting

Accepted

3.2k/6.2k

Acceptance Rate52.1%

Test Cases

Input

orders =

inventory =

Output

Expected