Virtu Financial coding interview
questions, leaked.
5 problems reported across recent Virtu Financial interviews. Top patterns: math, string, array. The list below is what most reported candidates actually saw, plus the honest play if you can't grind all of it.
Virtu Financial's assessment is math and string heavy. You're looking at five problems total, four of which are easy, one medium. No hard problems reported. The majority of what you'll see splits between math patterns and string manipulation. That's your prep target. String problems show up across three of the top five. Math appears in three as well. If you're solid on these two categories, you're already ahead. If you blank on a math or string pattern mid-assessment, StealthCoder runs invisibly and surfaces a working solution in seconds.
Top problems at Virtu Financial
| # | Problem | Diff | Frequency | Pass % | Patterns |
|---|---|---|---|---|---|
| 01 | How Many Apples Can You Put into the Basket | EASY | 100.0 | 67% | Array · Greedy · Sorting |
| 02 | Array Transformation | EASY | 98.9 | 53% | Array · Simulation |
| 03 | Hexspeak | EASY | 97.8 | 58% | Math · String |
| 04 | Count Substrings with Only One Distinct Letter | EASY | 96.5 | 81% | Math · String |
| 05 | Count Number of Homogenous Substrings | MEDIUM | 92.4 | 57% | Math · String |
Frequencies derived from public community-tagged interview reports. Click a row to view on LeetCode.
You have a week, maybe less. You can't out-grind the list above. StealthCoder runs invisibly during the actual Virtu Financial OA. The proctor cannot see it. Screen share cannot detect it. Made by a working Amazon engineer who got tired of watching qualified friends bomb OAs they'd solve cold in an IDE.
Get StealthCoderMath and string dominate the reported questions. Three problems pull from math, three from string. The easy tier heavily favors both. Array and greedy patterns appear less frequently but still matter for one or two slots. Sorting and simulation each show up once. Your prep should front-load math fundamentals and substring/character-counting problems. The medium difficulty question involves homogenous substrings and math, so if you're weak on counting patterns within strings, that's your weak point. Arrays appear in two problems but always paired with greedy or simulation logic, not as the primary challenge. Since the hard tier has zero reports, the ceiling is medium. StealthCoder serves as your insurance if you hit a string-counting pattern you haven't drilled.
Companies with similar patterns
If you prepped for Virtu Financial, these companies recycle ~60% of the same topics.
You've seen the list.
Now make sure you pass Virtu Financial.
Memorizing every problem above in a week is a fantasy. StealthCoder is the hedge: an AI overlay that's invisible during screen share. It reads the problem on screen and surfaces a working solution in under 2 seconds. Made by a working Amazon engineer who got tired of watching qualified friends bomb OAs they'd solve cold in an IDE. Works on HackerRank, CodeSignal, CoderPad, and Karat.
Virtu Financial interview FAQ
How much should I practice string problems for Virtu?+
String shows up in three of five reported problems. Prioritize substring counting and character-pattern problems. Count Substrings with Only One Distinct Letter and Count Number of Homogenous Substrings are both on the list. Drill these two patterns hard. One drill session each on counting consecutive identical characters and summing substrings gets you coverage for most of the string weight.
Do I need to prep greedy and sorting separately?+
Both appear once in the reported problems. They're not primary focuses here. Greedy shows up in the apple-basket problem (an array and sorting mix). Unless you're completely unfamiliar with greedy choice logic, one practice problem each is enough. Math and string prep will eat most of your time.
Is this assessment harder than typical tech OAs?+
No. Four of five are easy, one is medium. No hard problems reported. This is a lighter ceiling than Amazon or Google assessments. If you've done two or three medium-difficulty LeetCode sessions on math and strings, you're already over-prepared. The risk isn't difficulty; it's chasing edge cases in substring-counting logic.
What math concepts should I focus on?+
Three problems cite math. Two involve string counting and math together (Hexspeak, Count Substrings). The third is Count Number of Homogenous Substrings (medium). Focus on pattern recognition within strings and basic arithmetic. You don't need number theory or modular arithmetic. Substring enumeration and character-frequency counting are the core math skills tested.
How much time should I spend on array problems?+
Array appears in two of five, but never as the main topic. Both array problems pair array with another concept: greedy and sorting in one, simulation in the other. Array itself isn't the challenge. Spend 20-30 minutes understanding the specific pairing (greedy or simulation), not general array patterns.