Interview Cache

Master your next technical interview with real questions from industry leaders.

Drw

22 problems across 3 categories

Title	Difficulty	Updated
Compute expected arc length on a circle Data Scientist	Easy	Nov 22, 2025
Analyze distribution of a 3-dice product Data Scientist	Easy	Nov 22, 2025
Solve three algorithmic OA problems Software EngineerCoding	Medium	Oct 8, 2025
Differentiate sample vs population standard deviation Data Scientist	Medium	Aug 9, 2025
Compute rolling standard deviation in O(n) Data ScientistCoding	Medium	Aug 9, 2025
Train LinearSVC to beat baseline accuracy Machine Learning EngineerSystem Design	Medium	Aug 4, 2025
Solve odd-string, digit swap, patient slot assignment Software EngineerCoding	Medium	Aug 4, 2025
Solve movie ratings, array, release scheduler Data ScientistCoding	Medium	Aug 4, 2025
Solve Markov and distribution expectation problems Data Scientist	Medium	Aug 4, 2025
Implement portfolio optimization simulation Machine Learning EngineerCoding	Medium	Aug 4, 2025
Explain core ML concepts Machine Learning Engineer	Medium	Aug 4, 2025
Build pipeline for imbalanced classification Machine Learning EngineerSystem Design	Medium	Aug 4, 2025
Solve three algorithmic OA tasks Software EngineerCoding	Medium	Jul 31, 2025
Implement simulation-based portfolio optimizer in Python Machine Learning Engineer	Medium	Jul 31, 2025
Explain core ML and DL fundamentals Machine Learning Engineer	Medium	Jul 31, 2025
Build an imbalanced classification pipeline with sklearn Machine Learning Engineer	Hard	Jul 31, 2025
Train LinearSVC to beat a hidden baseline Machine Learning EngineerSystem Design	Hard	Jul 29, 2025
Process CSV for portfolio returns and metrics Machine Learning Engineer	Medium	Jul 29, 2025
Explain Transformers, activations, and training optimization Machine Learning Engineer	Hard	Jul 29, 2025
Solve three algorithmic tasks in Python Data ScientistCoding	Medium	Jul 28, 2025
Derive eigenvalues and sum for inverse matrix Data Scientist	Easy	Jul 28, 2025
Compute Markov steady state and expectations Data Scientist	Medium	Jul 28, 2025