Coding interview questions

Visa Coding Interview Questions (DSA)

The 23 DSA problems Visa has asked most in the last six months, most-asked first. 23 of them have a full breakdown with diagrams and code. Tick them off as you go.

Practice a Visa interview with me

I'm Alex. I'll pick 2 problems from Visa's list at your level and interview you like a real Visa round.

23problems
23full breakdowns
29topics

By difficulty: Medium (20) · Hard (3)

Start Visa Mock Interview→

Topics

3.Longest Substring Without Repeating Characters
Full breakdownHash TableStringSliding Window
Medium+13▶ Mock
2964.Number of Divisible Triplet Sums
Full breakdownArrayHash Table
Medium▶ Mock
5.Longest Palindromic Substring
Full breakdownTwo PointersStringDynamic Programming
Medium+8▶ Mock
2491.Divide Players Into Teams of Equal Skill
Full breakdownArrayHash TableTwo Pointers
Medium▶ Mock
56.Merge Intervals
Full breakdownArraySortingQuicksort
Medium+14▶ Mock
131.Palindrome Partitioning
Full breakdownStringDynamic ProgrammingBacktracking
Medium▶ Mock
2680.Maximum OR
Full breakdownArrayGreedyBit Manipulation
Medium▶ Mock
526.Beautiful Arrangement
Full breakdownArrayDynamic ProgrammingBacktracking
Medium▶ Mock
2484.Count Palindromic Subsequences
Full breakdownStringDynamic Programming
1963.Minimum Number of Swaps to Make the String Balanced
Full breakdownTwo PointersStringStack
Medium▶ Mock
636.Exclusive Time of Functions
Full breakdownArrayStack
Medium▶ Mock
2439.Minimize Maximum of Array
Full breakdownArrayBinary SearchDynamic Programming
Medium▶ Mock
200.Number of Islands
Full breakdownArrayDepth-First SearchBreadth-First Search
Medium+7▶ Mock
2466.Count Ways To Build Good Strings
Full breakdownDynamic Programming
Medium▶ Mock
560.Subarray Sum Equals K
Full breakdownArrayHash TablePrefix Sum
Medium+2▶ Mock
32.Longest Valid Parentheses
Full breakdownStringDynamic ProgrammingStack
347.Top K Frequent Elements
Full breakdownArrayHash TableDivide and Conquer
Medium+6▶ Mock
49.Group Anagrams
Full breakdownArrayHash TableString
Medium+9▶ Mock
3919.Minimum Cost to Move Between Indices
Full breakdownArrayGreedyPrefix Sum
Medium▶ Mock
928.Minimize Malware Spread II
Full breakdownArrayHash TableDepth-First Search
1143.Longest Common Subsequence
Full breakdownStringDynamic ProgrammingLongest Common Subsequence
Medium▶ Mock
735.Asteroid Collision
Full breakdownArrayStackSimulation
Medium+1▶ Mock

Frequently Asked Questions

What questions does Visa ask in coding interviews?

Visa coding interviews focus on Array, Backtracking, Binary Search, Bit Manipulation, and other data structure problems. We compiled 23 questions from real Visa interviews. The most common topics are Array, Backtracking, Binary Search, Bit Manipulation, Bitmask. Filter by topic to see what comes up most often.

How many Visa coding interview questions are there?

InterviewSkool has 23 Visa coding interview questions: 0 Easy, 20 Medium, and 3 Hard. Most Visa interviews focus on Medium-difficulty problems, so prioritize those in your prep.

How should I prepare for Visa coding interviews?

Start with Medium difficulty problems. Group by topic (Array, Tree, DP) to build pattern recognition. Aim to solve 30 to 40 problems before your interview. Then practice under pressure with a mock interview.

Are Visa coding interview questions free?

Yes. All 23 Visa coding interview questions are free to browse with no sign-up required. You can filter by difficulty and topic tags. Start a mock interview with a free credit to practice under real pressure.

Practice with a Mock Interview

Simulate real Visa interview pressure with our AI interviewer.

Start Mock Interview →