Capital One Online Assessment
Capital One screens quant analysts, data scientists and software engineers with the same first-round online assessment: the CodeSignal General Coding Assessment, 4 coding questions in 70 minutes drawn from a rotating pool and arranged on CodeSignal's fixed ladder (two implementation questions, one data-structure or simulation question, one harder algorithmic question). A candidate report covering one full sitting plus repeat sittings yields 14 distinct problems, which our timed simulation runs in full. The pipeline is OA -> recruiter screen -> Power Day (case, behavioral, and a technical or coding round depending on the track).
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Quant Analyst / Data Scientist / Software Engineer — General Coding Assessment (CodeSignal)
The CodeSignal General Coding Assessment: 4 questions in 70 minutes, any language, one solution() function per question, drawn from a rotating pool. Q1 and Q2 are short implementation tasks (count numbers with an even digit count, longest run of one character, symmetric triplets, latest train departure), Q3 is a data-structure or simulation problem (house segments after demolitions, robot and lasers, pair-sum queries with updates, batteries on a circular rack, match-3 gravity), and Q4 is the algorithmic one (minimum edits to a zigzag skyline, maximum expression path through a grid). Timing: about 8 minutes each on Q1 and Q2, 15 to 20 on Q3, and the rest on Q4, which carries the most weight in the 600 to 850 CodeSignal score; a partially passing Q4 still earns credit. Read the constraints first: the reported candidate passed the visible tests on the access-code pair count with an O(n^2) loop and failed the hidden ones on time. Repeats are common, three of the report's 17 items were problems seen in an earlier sitting. The timed simulation below runs the reported sitting exactly as it ran plus the other 10 pool problems.
- Count Numbers With an Even Number of Digits Coding · easy
- Count Symmetric Triplets Coding · easy
- Longest Run of a Single Character Coding · easy
- Latest Departure Not After Now Coding · easy
- Repeated Subtract-the-First-Non-Zero Procedure Coding · medium
- Distribute Numbers Into Two Arrays by Greater Count Coding · medium
- Ordered Pairs of Fragments Forming the Access Code Coding · medium
- House Segments After Each Demolition Coding · medium
- Robot Safe Cells Before the Lasers Coding · medium
- Pair-Sum Queries Across Two Lists With Updates Coding · medium
- Phone Call Batteries on a Circular Rack Coding · medium
- Match-3 Grid Explosion With Gravity Coding · medium
- Minimum Edits to Make Building Heights Alternate Coding · hard
- Maximum Value of a Valid Expression Path in a Grid Coding · hard
Capital One OA — FAQ
What is the Capital One online assessment?
Capital One screens quant analysts, data scientists and software engineers with the same first-round online assessment: the CodeSignal General Coding Assessment, 4 coding questions in 70 minutes drawn from a rotating pool and arranged on CodeSignal's fixed ladder (two implementation questions, one data-structure or simulation question, one harder algorithmic question). A candidate report covering one full sitting plus repeat sittings yields 14 distinct problems, which our timed simulation runs in full. The pipeline is OA -> recruiter screen -> Power Day (case, behavioral, and a technical or coding round depending on the track).
What is the format of the Capital One OA?
It runs as 1 track (General Coding Assessment (CodeSignal)). Quant Analyst / Data Scientist / Software Engineer, each timed and auto-graded where applicable.
How do I practice for the Capital One online assessment?
Work the sample questions above (each with a full worked solution), then take the interactive Capital One OA practice on QuantVault.
What is the Capital One online assessment?
For quant analyst, data scientist and software engineering applicants it is the CodeSignal General Coding Assessment: 4 coding questions in 70 minutes, taken in the browser in any supported language, with visible sample tests and hidden graded tests. Questions come from a rotating pool and follow CodeSignal's ladder of two implementation problems, one data-structure or simulation problem and one harder algorithmic problem.
How is the Capital One CodeSignal assessment scored?
CodeSignal reports a score from 600 to 850 based on which hidden tests pass, weighted toward the harder third and fourth questions and adjusted for time. Capital One does not publish its cutoff, and it varies by role and cycle; because the fourth question carries the most weight, attempt it for partial credit rather than leaving it blank.
What kind of questions are on the Capital One coding assessment?
Reported problems include counting numbers with an even number of digits, the longest run of a single character, the number of house segments after each demolition, a robot counting safe cells before laser rows and columns, pair-sum queries across two lists with updates, ordered pairs of fragments forming an access code, a phone-battery swapping simulation, a match-3 grid with gravity, the minimum edits to make building heights alternate, and the maximum-value expression path through a grid of digits and signs. Our timed simulation contains all 14 distinct reported problems with hidden tests.
Is the Capital One quant assessment the same as the software one?
Yes at the first round: the CodeSignal General Coding Assessment is a shared screen across quant analyst, data science and software tracks. The tracks diverge afterwards, with quant and data-science candidates getting statistics, modeling and case interviews at the Power Day while software candidates get system design and a second coding round.