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 Tesco interviews.
Very Likely
75-100%
Likely
50-74%
Sometimes
25-49%
Rare
0-24%
Problem database last updated: June 20, 2025
T
Tesco Coding Interview Questions
3 problems · 0 Easy, 3 Medium, 0 Hard · Ranked #324 of 458
Difficulty breakdown
0 Easy
0% · avg 23%
3 Medium
100% · avg 59%
0 Hard
0% · avg 18%
Top topics
array
66.7%
sorting
33.3%2.3x
string
33.3%
stack
33.3%3.9x
recursion
33.3%7.4x
Interview profile
Based on 3 reported problems, Tesco 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 array (66.7%), sorting (33.3%), string (33.3%), stack (33.3%). Problems below are sorted by frequency, the ones at the top are asked most often.
All 3 problems
| Problem | Difficulty | Frequency | Topics | |
|---|---|---|---|---|
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 |
Decode String Given an encoded string, return its decoded string. | Medium | Likely | stringstackrecursion | Solve |
Insert Interval You are given an array of non-overlapping intervals intervals where intervals[i] = [starti, endi] represent the start and the end of the ith interval and interv... | Medium | Likely | array | Solve |
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...
MediumVery Likely
arraysorting
Decode String
SolveGiven an encoded string, return its decoded string.
MediumLikely
stringstackrecursion
Insert Interval
SolveYou are given an array of non-overlapping intervals intervals where intervals[i] = [starti, endi] represent the start and the end of the ith interval and interv...
MediumLikely
array
Preparing for your Tesco coding interview
Tesco interviews focus heavily on array, sorting, 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. Tesco 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 Tesco ask in interviews?add
Tesco has been reported to ask 3 distinct coding problems. The most common topics are array, sorting, string. 0 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 Tesco coding interviews?add
Based on 3 reported problems, Tesco 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 Tesco coding interview?add
Start with the highest-frequency problems listed on this page. Focus on the core topics: array, sorting, string. 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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