Problem database last updated: June 20, 2025
18 problems · 5 Easy, 13 Medium, 0 Hard · Ranked #99 of 458
5 Easy
28% · avg 23%
13 Medium
72% · avg 59%
0 Hard
0% · avg 18%
Based on 18 reported problems, Disney interviews are easier than average - only 0% Hard compared to 18% across all companies. The majority (72%) of questions are Medium difficulty, which is typical for companies that want to see solid fundamentals without excessive trick questions.
Compared to the industry average, Disney puts unusual emphasis on union-find (11.1% of problems, 3.8x the industry average), prefix-sum (11.1% of problems, 3.3x the industry average), string (44.4% of problems, 1.6x the industry average). If you're short on time, these are the categories to double down on.
The most common topics are array (44.4%), string (44.4%), hash-table (27.8%), dynamic-programming (22.2%). Problems below are sorted by frequency, the ones at the top are asked most often.
| Problem | Difficulty | Frequency | Topics | |
|---|---|---|---|---|
LRU Cache Design a data structure that follows the constraints of a Least Recently Used (LRU) cache. | Medium | Very Likely | hash-tablelinked-listdesign | Solve |
Merge Intervals Given an array of intervals where intervals[i] = [starti, endi], merge all overlapping intervals, and return an array of the non-overlapping intervals that cove... | Medium | Very Likely | arraysorting | Solve |
Ransom Note Given two strings ransomNote and magazine, return true if ransomNote can be constructed by using the letters from magazine and false otherwise. | Easy | Very Likely | hash-tablestringcounting | Solve |
Generate Parentheses Given n pairs of parentheses, write a function to generate all combinations of well-formed parentheses. | Medium | Very Likely | stringdynamic-programmingbacktracking | Solve |
Remove All Adjacent Duplicates in String II You are given a string s and an integer k, a k duplicate removal consists of choosing k adjacent and equal letters from s and removing them, causing the left an... | Medium | Very Likely | stringstack | Solve |
Max Area of Island You are given an m x n binary matrix grid. An island is a group of 1's (representing land) connected 4-directionally (horizontal or vertical.) You may assume al... | Medium | Very Likely | arraydepth-first-searchbreadth-first-search | Solve |
Product of Array Except Self Given an integer array nums, return an array answer such that answer[i] is equal to the product of all the elements of nums except nums[i]. | Medium | Very Likely | arrayprefix-sum | Solve |
Group Anagrams Given an array of strings strs, group the anagrams together. You can return the answer in any order. | Medium | Very Likely | arrayhash-tablestring | Solve |
Climbing Stairs You are climbing a staircase. It takes n steps to reach the top. | Easy | Very Likely | mathdynamic-programmingmemoization | Solve |
Reverse Linked List II Given the head of a singly linked list and two integers left and right where left <= right, reverse the nodes of the list from position left to position right,... | Medium | Very Likely | linked-list | Solve |
Number of Islands Given an m x n 2D binary grid grid which represents a map of '1's (land) and '0's (water), return the number of islands. | Medium | Very Likely | arraydepth-first-searchbreadth-first-search | Solve |
Egg Drop With 2 Eggs and N Floors You are given two identical eggs and you have access to a building with n floors labeled from 1 to n. | Medium | Very Likely | mathdynamic-programming | 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 |
Subarray Sum Equals K Given an array of integers nums and an integer k, return the total number of subarrays whose sum equals to k. | Medium | Very Likely | arrayhash-tableprefix-sum | Solve |
Longest Palindromic Substring Given a string s, return the longest palindromic substring in s. | Medium | Very Likely | two-pointersstringdynamic-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 |
Valid Anagram Given two strings s and t, return true if t is an anagram of s, and false otherwise. | Easy | Very Likely | hash-tablestringsorting | Solve |
Valid Parentheses Given a string s containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. | Easy | Very Likely | stringstack | Solve |
LRU Cache
SolveDesign a data structure that follows the constraints of a Least Recently Used (LRU) cache.
Merge Intervals
SolveGiven an array of intervals where intervals[i] = [starti, endi], merge all overlapping intervals, and return an array of the non-overlapping intervals that cove...
Ransom Note
SolveGiven two strings ransomNote and magazine, return true if ransomNote can be constructed by using the letters from magazine and false otherwise.
Generate Parentheses
SolveGiven n pairs of parentheses, write a function to generate all combinations of well-formed parentheses.
Remove All Adjacent Duplicates in String II
SolveYou are given a string s and an integer k, a k duplicate removal consists of choosing k adjacent and equal letters from s and removing them, causing the left an...
Max Area of Island
SolveYou are given an m x n binary matrix grid. An island is a group of 1's (representing land) connected 4-directionally (horizontal or vertical.) You may assume al...
Product of Array Except Self
SolveGiven an integer array nums, return an array answer such that answer[i] is equal to the product of all the elements of nums except nums[i].
Group Anagrams
SolveGiven an array of strings strs, group the anagrams together. You can return the answer in any order.
Climbing Stairs
SolveYou are climbing a staircase. It takes n steps to reach the top.
Reverse Linked List II
SolveGiven the head of a singly linked list and two integers left and right where left <= right, reverse the nodes of the list from position left to position right,...
Number of Islands
SolveGiven an m x n 2D binary grid grid which represents a map of '1's (land) and '0's (water), return the number of islands.
Egg Drop With 2 Eggs and N Floors
SolveYou are given two identical eggs and you have access to a building with n floors labeled from 1 to n.
Search in Rotated Sorted Array
SolveThere is an integer array nums sorted in ascending order (with distinct values).
Subarray Sum Equals K
SolveGiven an array of integers nums and an integer k, return the total number of subarrays whose sum equals to k.
Longest Palindromic Substring
SolveGiven a string s, return the longest palindromic substring in s.
Longest Common Prefix
SolveWrite a function to find the longest common prefix string amongst an array of strings.
Valid Anagram
SolveGiven two strings s and t, return true if t is an anagram of s, and false otherwise.
Valid Parentheses
SolveGiven a string s containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid.
Frequency scores are based on crowdsourced interview reports. A higher score means the problem has been reported more often in recent Disney interviews.
Very Likely
75-100%
Likely
50-74%
Sometimes
25-49%
Rare
0-24%
Disney interviews focus heavily on array, string, hash-table 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. Disney 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.
Looking for more companies? Browse all 458 companies in our directory, or sharpen your fundamentals with our free data structure visualizers and AI-powered DSA tutor.
Disney has been reported to ask 18 distinct coding problems. The most common topics are array, string, hash-table. 5 are Easy difficulty, 13 are Medium, and 0 are Hard. Problems are sorted by frequency - the ones at the top are asked most often.
Based on 18 reported problems, Disney interviews are easier than average - only 0% Hard compared to 18% across all companies. 72% 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, hash-table. Practice solving them under time pressure and explaining your approach out loud. Mock interviews with AI can simulate the real experience.
Simulate a real Disney coding interview with an AI interviewer. Get a scorecard with specific feedback on your problem-solving, code quality, and communication.
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