Coding questions

1,899 resources · Page 17 of 80

1. Coding questions · Uber

   Compute square root to 1 decimal

   This question evaluates a candidate's understanding of numerical methods, floating-point precision, and implementation of approximate functions when producing a square root rounded to one decimal place.

2. Coding questions · ByteDance

   Compute square root with precision

   This question evaluates a candidate's understanding of numerical methods for root finding, floating-point precision control, and algorithmic time complexity analysis when computing square roots without built-in functions.

3. Coding questions · Akuna Capital

   Compute statistics in data stream

   This question evaluates understanding of streaming data structures and statistical aggregation, specifically maintaining max, mean, and mode for an unbounded integer stream.

4. Coding questions · Meta

   Compute Stock Profit with One or Unlimited Transactions

   Compute maximum stock profit for both one transaction and unlimited nonoverlapping transactions in linear time, returning zero when no positive trade is available.

5. Coding questions · Aurora

   Compute streaming sliding-window minimums

   This question evaluates a candidate's understanding of streaming algorithms and efficient data-structure techniques for maintaining sliding-window minima, measuring competency in algorithmic thinking, time and space complexity, and online processing.

6. Coding questions · Moloco

   Compute subarray span for each element

   This question evaluates array reasoning and competency in determining span-like influence regions under maximum-value constraints for each element, including handling circular-array extensions and scalability considerations.

7. Coding questions · Microsoft

   Compute sum of longest positive subarray

   Compute sum of longest positive subarray evaluates algorithm design, data structures, correctness, complexity, edge cases, and implementation details in a realistic interview setting. A strong answer states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.

8. Coding questions · Kneron

   Compute sum of minima with removals

   Compute sum of minima with removals evaluates algorithm design, data structures, correctness, complexity, edge cases, and implementation details in a realistic interview setting. A strong answer states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.

9. Coding questions · Meta

   Compute survey rates and bias-correct ratings

   This question evaluates proficiency in data manipulation and analytics, specifically SQL window functions, joins, time-windowed de-duplication, aggregation of response and completion rates, and statistical reweighting to correct non-response bias.

10. Coding questions · Qualcomm

    Compute the Diameter of an Undirected Tree

    Compute the diameter of a large undirected tree, measured by the number of edges on its longest simple path. The exercise tests adjacency construction, linear-time tree traversal, endpoint reasoning, recursion-depth awareness, and edge cases such as a single-node tree.

11. Coding questions · Liftoff

    Compute the Eddington number from ride distances

    This question evaluates a candidate's competence in array manipulation, ordering/selection techniques, counting thresholds, and algorithmic complexity analysis required to compute the Eddington number.

12. Coding questions · Bloomberg

    Compute the Nth Recency Value

    This question evaluates understanding of recurrence-based sequence generation, index-based historical state tracking, and the design of time- and space-efficient algorithms. It is commonly asked in the Coding & Algorithms domain to assess algorithmic analysis and performance reasoning, emphasizing practical implementation-level competency rather than purely theoretical concepts.

13. Coding questions · Tesla

    Compute time to burn tree

    This question evaluates proficiency with tree algorithms, distance computation, and propagation modeling, testing the ability to reason about how a process spreads across parent-child relationships in a tree.

14. Coding questions · OpenAI

    Compute time to infect all cells

    This question evaluates competency in modeling and analyzing discrete-time grid-based state propagation with threshold-based infection rules and boundary conditions.

15. Coding questions · Meta

    Compute top-N active customers

    This question evaluates a candidate's competence in designing efficient data structures and streaming/top‑K algorithms, handling event-driven updates, correctness under late or expired events, deterministic tie‑breaking, and scalability to millions of customers.

16. Coding questions · Meta

    Compute top-N outgoing spenders

    This question evaluates a candidate's ability to design efficient aggregation and top-N ranking over transactional data, testing algorithm design, data structure knowledge, and complexity analysis within the Coding & Algorithms domain.

17. Coding questions · LinkedIn

    Compute total covered interval length

    Compute total covered interval length evaluates algorithm design, data structures, correctness, complexity, edge cases, and implementation details in a realistic interview setting. A strong answer states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.

18. Coding questions · Visa

    Compute Total Spent in 2023 Excluding Refunds

    This question evaluates data manipulation and aggregation skills in Python (pandas) and SQL by testing transactional filtering, handling of refunds, and computation of per-user total spending.

19. Coding questions · Stripe

    Compute transaction fees from a CSV string

    Evaluates CSV parsing, numeric conversions and rounding, map lookups with fallbacks, transactional fee computation and per-merchant aggregation in the Coding & Algorithms category for Data Engineer roles.

20. Coding questions · Remitly

    Compute transfers to balance account debts

    This question evaluates a candidate's ability to convert per-account net balances into a set of transfers, testing algorithmic problem solving, data-structure manipulation, and correctness under conservation invariants in transactional systems.

21. Coding questions · Zest AI

    Compute tree depth and meeting rooms

    This question evaluates skills in tree traversal and recursion for computing maximum depth of a binary tree, alongside interval scheduling and resource allocation for determining the minimum number of meeting rooms, testing reasoning about data structures such as trees and interval endpoints.

22. Coding questions · Meta

    Compute tree right view and target-sum subarrays

    This two-part question evaluates skills in tree traversal and visible-node extraction for the binary-tree right-side view task and in array cumulative-sum reasoning for counting contiguous subarrays with a target sum, assessing data-structure manipulation and algorithmic problem-solving competency.

23. Coding questions · Agoda

    Compute triangle min path and dice stopping stats

    This composite question evaluates dynamic programming and algorithmic optimization via the triangle minimum path problem and probability, stopping-time analysis and Monte Carlo simulation through the two-dice experiment, testing competencies in DP, discrete probability, expected-value reasoning and empirical estimation.

24. Coding questions · Robinhood

    Compute trigger counts in a DAG

    This question evaluates understanding of directed acyclic graphs, graph traversal and accumulation of values across dependency edges, as well as algorithmic efficiency for handling large sparse graphs.