How often are these problems asked?
Frequency scores are based on crowdsourced interview reports. A higher score means the problem has been reported more often in recent RBC interviews.
Very Likely
75-100%
Likely
50-74%
Sometimes
25-49%
Rare
0-24%
Problem database last updated: June 20, 2025
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RBC Coding Interview Questions
5 problems · 2 Easy, 3 Medium, 0 Hard · Ranked #227 of 458
Difficulty breakdown
2 Easy
40% · avg 23%
3 Medium
60% · avg 59%
0 Hard
0% · avg 18%
Top topics
array
60%
two-pointers
60%4.4x
dynamic-programming
40%2x
string
40%
matrix
20%2.3x
simulation
20%4.6x
Interview profile
Based on 5 reported problems, RBC interviews are easier than average - only 0% Hard compared to 18% across all companies. The majority (60%) 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, RBC puts unusual emphasis on two-pointers (60% of problems, 4.4x the industry average), dynamic-programming (40% of problems, 2x the industry average). If you're short on time, these are the categories to double down on.
The most common topics are array (60%), two-pointers (60%), dynamic-programming (40%), string (40%). Problems below are sorted by frequency, the ones at the top are asked most often.
All 5 problems
| Problem | Difficulty | Frequency | Topics | |
|---|---|---|---|---|
Spiral Matrix Given an m x n matrix, return all elements of the matrix in spiral order. | Medium | Very Likely | arraymatrixsimulation | Solve |
Best Time to Buy and Sell Stock You are given an array prices where prices[i] is the price of a given stock on the ith day. | Easy | Very Likely | arraydynamic-programming | Solve |
Longest Palindromic Substring Given a string s, return the longest palindromic substring in s. | Medium | Very Likely | two-pointersstringdynamic-programming | Solve |
Container With Most Water You are given an integer array height of length n. There are n vertical lines drawn such that the two endpoints of the ith line are (i, 0) and (i, height[i]). | Medium | Very Likely | arraytwo-pointersgreedy | Solve |
Valid Palindrome A phrase is a palindrome if, after converting all uppercase letters into lowercase letters and removing all non-alphanumeric characters, it reads the same forwa... | Easy | Very Likely | two-pointersstring | Solve |
Spiral Matrix
SolveGiven an m x n matrix, return all elements of the matrix in spiral order.
MediumVery Likely
arraymatrixsimulation
Best Time to Buy and Sell Stock
SolveYou are given an array prices where prices[i] is the price of a given stock on the ith day.
EasyVery Likely
arraydynamic-programming
Longest Palindromic Substring
SolveGiven a string s, return the longest palindromic substring in s.
MediumVery Likely
two-pointersstringdynamic-programming
Container With Most Water
SolveYou are given an integer array height of length n. There are n vertical lines drawn such that the two endpoints of the ith line are (i, 0) and (i, height[i]).
MediumVery Likely
arraytwo-pointersgreedy
Valid Palindrome
SolveA phrase is a palindrome if, after converting all uppercase letters into lowercase letters and removing all non-alphanumeric characters, it reads the same forwa...
EasyVery Likely
two-pointersstring
Preparing for your RBC coding interview
RBC interviews focus heavily on array, two-pointers, dynamic-programming 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. RBC 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.
Frequently Asked Questions
What coding problems does RBC ask in interviews?add
RBC has been reported to ask 5 distinct coding problems. The most common topics are array, two-pointers, dynamic-programming. 2 are Easy difficulty, 3 are Medium, and 0 are Hard. Problems are sorted by frequency - the ones at the top are asked most often.
How hard are RBC coding interviews?add
Based on 5 reported problems, RBC interviews are easier than average - only 0% Hard compared to 18% across all companies. 60% of questions are Medium difficulty. Focus on the high-frequency Medium problems first, then work through the Hard ones.
How should I prepare for a RBC coding interview?add
Start with the highest-frequency problems listed on this page. Focus on the core topics: array, two-pointers, dynamic-programming. Practice solving them under time pressure and explaining your approach out loud. Mock interviews with AI can simulate the real experience.
Other companies to explore
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