Problem database last updated: June 20, 2025
9 problems · 2 Easy, 4 Medium, 3 Hard · Ranked #154 of 458
2 Easy
22% · avg 23%
4 Medium
44% · avg 59%
3 Hard
33% · avg 18%
Based on 9 reported problems, PornHub interviews are significantly harder than average - 33% Hard vs 18% across all companies.
Compared to the industry average, PornHub puts unusual emphasis on trie (22.2% of problems, 8.4x the industry average), divide-and-conquer (22.2% of problems, 5.4x the industry average), binary-search (33.3% of problems, 3.8x the industry average). If you're short on time, these are the categories to double down on.
The most common topics are array (66.7%), string (44.4%), binary-search (33.3%), dynamic-programming (33.3%). Problems below are sorted by frequency, the ones at the top are asked most often.
| Problem | Difficulty | Frequency | Topics | |
|---|---|---|---|---|
Median of Two Sorted Arrays Given two sorted arrays nums1 and nums2 of size m and n respectively, return the median of the two sorted arrays. | Hard | Very Likely | arraybinary-searchdivide-and-conquer | Solve |
Maximum Subarray Given an integer array nums, find the subarray with the largest sum, and return its sum. | Medium | Very Likely | arraydivide-and-conquerdynamic-programming | Solve |
Longest Common Prefix Write a function to find the longest common prefix string amongst an array of strings. | Easy | Very Likely | arraystringtrie | Solve |
Search in Rotated Sorted Array There is an integer array nums sorted in ascending order (with distinct values). | Medium | Very Likely | arraybinary-search | Solve |
Reverse Nodes in k-Group Given the head of a linked list, reverse the nodes of the list k at a time, and return the modified list. | Hard | Very Likely | linked-listrecursion | Solve |
Split Array Largest Sum Given an integer array nums and an integer k, split nums into k non-empty subarrays such that the largest sum of any subarray is minimized. | Hard | Very Likely | arraybinary-searchdynamic-programming | Solve |
Check if Number Has Equal Digit Count and Digit Value You are given a 0-indexed string num of length n consisting of digits. | Easy | Very Likely | hash-tablestringcounting | Solve |
Longest Substring Without Repeating Characters Given a string s, find the length of the longest substring without duplicate characters. | Medium | Very Likely | hash-tablestringsliding-window | Solve |
Extra Characters in a String You are given a 0-indexed string s and a dictionary of words dictionary. You have to break s into one or more non-overlapping substrings such that each substrin... | Medium | Very Likely | arrayhash-tablestring | Solve |
Median of Two Sorted Arrays
SolveGiven two sorted arrays nums1 and nums2 of size m and n respectively, return the median of the two sorted arrays.
Maximum Subarray
SolveGiven an integer array nums, find the subarray with the largest sum, and return its sum.
Longest Common Prefix
SolveWrite a function to find the longest common prefix string amongst an array of strings.
Search in Rotated Sorted Array
SolveThere is an integer array nums sorted in ascending order (with distinct values).
Reverse Nodes in k-Group
SolveGiven the head of a linked list, reverse the nodes of the list k at a time, and return the modified list.
Split Array Largest Sum
SolveGiven an integer array nums and an integer k, split nums into k non-empty subarrays such that the largest sum of any subarray is minimized.
Check if Number Has Equal Digit Count and Digit Value
SolveYou are given a 0-indexed string num of length n consisting of digits.
Longest Substring Without Repeating Characters
SolveGiven a string s, find the length of the longest substring without duplicate characters.
Extra Characters in a String
SolveYou are given a 0-indexed string s and a dictionary of words dictionary. You have to break s into one or more non-overlapping substrings such that each substrin...
Frequency scores are based on crowdsourced interview reports. A higher score means the problem has been reported more often in recent PornHub interviews.
Very Likely
75-100%
Likely
50-74%
Sometimes
25-49%
Rare
0-24%
PornHub interviews focus heavily on array, string, binary-search problems. If you're short on time, these are the categories to prioritize. The problems on this page are sorted by frequency, so start from the top and work your way down.
Beyond solving problems, practice explaining your approach. PornHub interviewers care about your thought process - how you break down a problem, consider edge cases, and evaluate tradeoffs between solutions. A clean O(n) solution you can explain clearly beats an O(log n) solution you can't articulate.
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PornHub has been reported to ask 9 distinct coding problems. The most common topics are array, string, binary-search. 2 are Easy difficulty, 4 are Medium, and 3 are Hard. Problems are sorted by frequency - the ones at the top are asked most often.
Based on 9 reported problems, PornHub interviews are significantly harder than average - 33% Hard vs 18% across all companies. 44% of questions are Medium difficulty. Focus on the high-frequency Medium problems first, then work through the Hard ones.
Start with the highest-frequency problems listed on this page. Focus on the core topics: array, string, binary-search. Practice solving them under time pressure and explaining your approach out loud. Mock interviews with AI can simulate the real experience.
Simulate a real PornHub coding interview with an AI interviewer. Get a scorecard with specific feedback on your problem-solving, code quality, and communication.
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