Problem database last updated: June 20, 2025
12 problems · 2 Easy, 7 Medium, 3 Hard · Ranked #123 of 458
2 Easy
17% · avg 23%
7 Medium
58% · avg 59%
3 Hard
25% · avg 18%
Based on 12 reported problems, Rippling interviews are slightly harder than average - 25% Hard vs 18% across all companies. The majority (58%) 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, Rippling puts unusual emphasis on union-find (16.7% of problems, 5.6x the industry average), graph (16.7% of problems, 5.6x the industry average), design (25% of problems, 4.3x the industry average). If you're short on time, these are the categories to double down on.
The most common topics are array (83.3%), hash-table (41.7%), string (33.3%), depth-first-search (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 |
Design Spreadsheet A spreadsheet is a grid with 26 columns (labeled from 'A' to 'Z') and a given number of rows. Each cell in the spreadsheet can hold an integer value between 0 a... | Medium | Very Likely | arrayhash-tablestring | Solve |
Evaluate Division You are given an array of variable pairs equations and an array of real numbers values, where equations[i] = [Ai, Bi] and values[i] represent the equation Ai /... | Medium | Very Likely | arraystringdepth-first-search | Solve |
Employee Importance You have a data structure of employee information, including the employee's unique ID, importance value, and direct subordinates' IDs. | Medium | Likely | arrayhash-tabletree | Solve |
Maximum Subarray Given an integer array nums, find the subarray with the largest sum, and return its sum. | Medium | Likely | arraydivide-and-conquerdynamic-programming | Solve |
Last Stone Weight You are given an array of integers stones where stones[i] is the weight of the ith stone. | Easy | Likely | arrayheap-priority-queue | Solve |
Accounts Merge Given a list of accounts where each element accounts[i] is a list of strings, where the first element accounts[i][0] is a name, and the rest of the elements are... | Medium | Likely | arrayhash-tablestring | Solve |
Maximize Amount After Two Days Of Conversions You start with 1.0 of initialCurrency. On day 1, you can perform any number of conversions using pairs1 and rates1. On day 2, you can perform any number of conv... | Medium | Likely | depth-first-searchbreadth-first-searchgraph | Solve |
Merge Two Sorted Lists You are given the heads of two sorted linked lists list1 and list2. | Easy | Likely | linked-listrecursion | Solve |
Insert Delete GetRandom O(1) Implement the RandomizedSet class: | Medium | Likely | arrayhash-tablemath | Solve |
LFU Cache Design and implement a data structure for a Least Frequently Used (LFU) cache. | Hard | Likely | hash-tablelinked-listdesign | Solve |
Number of Visible People in a Queue There are n people standing in a queue, and they numbered from 0 to n - 1 in left to right order. You are given an array heights of distinct integers where heig... | Hard | Likely | arraystackmonotonic-stack | 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.
Design Spreadsheet
SolveA spreadsheet is a grid with 26 columns (labeled from 'A' to 'Z') and a given number of rows. Each cell in the spreadsheet can hold an integer value between 0 a...
Evaluate Division
SolveYou are given an array of variable pairs equations and an array of real numbers values, where equations[i] = [Ai, Bi] and values[i] represent the equation Ai /...
Employee Importance
SolveYou have a data structure of employee information, including the employee's unique ID, importance value, and direct subordinates' IDs.
Maximum Subarray
SolveGiven an integer array nums, find the subarray with the largest sum, and return its sum.
Last Stone Weight
SolveYou are given an array of integers stones where stones[i] is the weight of the ith stone.
Accounts Merge
SolveGiven a list of accounts where each element accounts[i] is a list of strings, where the first element accounts[i][0] is a name, and the rest of the elements are...
Maximize Amount After Two Days Of Conversions
SolveYou start with 1.0 of initialCurrency. On day 1, you can perform any number of conversions using pairs1 and rates1. On day 2, you can perform any number of conv...
Merge Two Sorted Lists
SolveYou are given the heads of two sorted linked lists list1 and list2.
LFU Cache
SolveDesign and implement a data structure for a Least Frequently Used (LFU) cache.
Number of Visible People in a Queue
SolveThere are n people standing in a queue, and they numbered from 0 to n - 1 in left to right order. You are given an array heights of distinct integers where heig...
Frequency scores are based on crowdsourced interview reports. A higher score means the problem has been reported more often in recent Rippling interviews.
Very Likely
75-100%
Likely
50-74%
Sometimes
25-49%
Rare
0-24%
Rippling interviews focus heavily on array, hash-table, string 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. Rippling 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.
Rippling has been reported to ask 12 distinct coding problems. The most common topics are array, hash-table, string. 2 are Easy difficulty, 7 are Medium, and 3 are Hard. Problems are sorted by frequency - the ones at the top are asked most often.
Based on 12 reported problems, Rippling interviews are slightly harder than average - 25% Hard vs 18% across all companies. 58% 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, hash-table, string. Practice solving them under time pressure and explaining your approach out loud. Mock interviews with AI can simulate the real experience.
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