Real Exams
For 2023
PayPal
- 1 Simulations
- 1 Optimized Simulations (prefix array)
PathAI
- 1 Simulations that had a bunch of edge cases (solved 9/10)
- 1 Optimized Simulations
Grammarly
Duolingo
- 1 multiple map problem (simple data analysis & processing)
- 1 path reduction problem (didn't have enough time)
LinkedIn
Akuna Capital — "Front Runner"
- 1 Optimized Simulations
- Passed 5/8 test cases
DRW
Akuna Capital Python
- 1 Optimized Simulations
- 1 text compression & Optimized Simulations
- 1, which seemed Greedy Algorithm (I didn't have the time to solve it)
Akuna Capital C++
- 10 multiple choice questions
- required a deep understanding of C++ recent specs
- 1 Greedy Algorithm palindrome substring search
- 1 adjacency list construction and tree search.
- Time limit was stringent, and I wasn't able to finish it
- 1 Optimized Simulations using bitwise operations
- Time limit was stringent, and I wasn't able to finish it
Valkyrie Trading
- 1 binary tree construction & binary search traversal
- 1 Simulations
CodeSignal (HRT, Databricks)
IMC
Garda Capital Partners
- 3 Math-based Coding problems (2 finding-formula, 1 map)
- 1 SQL Problem
BlackRock
- 1 stack
- 1 BFS
For 2022
Facebook
- 1 recursion
- 1 simple algorithm
- 1 Optimized Simulations
Coinbase
Goldman Sachs
Sezzle
- Get Job Done SQL, React, Python
Twitch
- Get Job Done Data Parsing