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 NCR interviews.
Very Likely
75-100%
Likely
50-74%
Sometimes
25-49%
Rare
0-24%
Problem database last updated: June 20, 2025
N
NCR Coding Interview Questions
2 problems · 0 Easy, 2 Medium, 0 Hard · Ranked #375 of 458
Difficulty breakdown
0 Easy
0% · avg 23%
2 Medium
100% · avg 59%
0 Hard
0% · avg 18%
Top topics
dynamic-programming
50%2.5x
queue
50%34.7x
simulation
50%11.6x
hash-table
50%2.2x
string
50%1.8x
sliding-window
50%10.6x
Interview profile
Based on 2 reported problems, NCR interviews are easier than average - only 0% Hard compared to 18% across all companies. The majority (100%) of questions are Medium difficulty, which is typical for companies that want to see solid fundamentals without excessive trick questions.
The most common topics are dynamic-programming (50%), queue (50%), simulation (50%), hash-table (50%). Problems below are sorted by frequency, the ones at the top are asked most often.
All 2 problems
| Problem | Difficulty | Frequency | Topics | |
|---|---|---|---|---|
Number of People Aware of a Secret On day 1, one person discovers a secret. | Medium | Very Likely | dynamic-programmingqueuesimulation | 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 |
Number of People Aware of a Secret
SolveOn day 1, one person discovers a secret.
MediumVery Likely
dynamic-programmingqueuesimulation
Longest Substring Without Repeating Characters
SolveGiven a string s, find the length of the longest substring without duplicate characters.
MediumVery Likely
hash-tablestringsliding-window
Preparing for your NCR coding interview
NCR interviews focus heavily on dynamic-programming, queue, simulation 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. NCR 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 NCR ask in interviews?add
NCR has been reported to ask 2 distinct coding problems. The most common topics are dynamic-programming, queue, simulation. 0 are Easy difficulty, 2 are Medium, and 0 are Hard. Problems are sorted by frequency - the ones at the top are asked most often.
How hard are NCR coding interviews?add
Based on 2 reported problems, NCR interviews are easier than average - only 0% Hard compared to 18% across all companies. 100% 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 NCR coding interview?add
Start with the highest-frequency problems listed on this page. Focus on the core topics: dynamic-programming, queue, simulation. 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
Ready to ace your NCR interview?
Simulate a real NCR coding interview with an AI interviewer. Get a scorecard with specific feedback on your problem-solving, code quality, and communication.
Simulate a NCR interview with AIarrow_forward