Problem database last updated: June 20, 2025
6 problems · 1 Easy, 5 Medium, 0 Hard · Ranked #213 of 458
1 Easy
17% · avg 23%
5 Medium
83% · avg 59%
0 Hard
0% · avg 18%
Based on 6 reported problems, Zalando interviews are easier than average - only 0% Hard compared to 18% across all companies. The majority (83%) 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, Zalando puts unusual emphasis on greedy (66.7% of problems, 7.9x the industry average), sorting (33.3% of problems, 2.3x the industry average). If you're short on time, these are the categories to double down on.
The most common topics are greedy (66.7%), array (50%), string (33.3%), sorting (33.3%). Problems below are sorted by frequency, the ones at the top are asked most often.
| Problem | Difficulty | Frequency | Topics | |
|---|---|---|---|---|
String Without AAA or BBB Given two integers a and b, return any string s such that: | Medium | Very Likely | stringgreedy | Solve |
LRU Cache Design a data structure that follows the constraints of a Least Recently Used (LRU) cache. | Medium | Likely | hash-tablelinked-listdesign | Solve |
Lemonade Change At a lemonade stand, each lemonade costs $5. Customers are standing in a queue to buy from you and order one at a time (in the order specified by bills). Each c... | Easy | Likely | arraygreedy | 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 | Likely | arraysorting | Solve |
Largest Number Given a list of non-negative integers nums, arrange them such that they form the largest number and return it. | Medium | Likely | arraystringgreedy | Solve |
Construct the Longest New String You are given three integers x, y, and z. | Medium | Likely | mathdynamic-programminggreedy | Solve |
String Without AAA or BBB
SolveGiven two integers a and b, return any string s such that:
LRU Cache
SolveDesign a data structure that follows the constraints of a Least Recently Used (LRU) cache.
Lemonade Change
SolveAt a lemonade stand, each lemonade costs $5. Customers are standing in a queue to buy from you and order one at a time (in the order specified by bills). Each c...
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...
Largest Number
SolveGiven a list of non-negative integers nums, arrange them such that they form the largest number and return it.
Construct the Longest New String
SolveYou are given three integers x, y, and z.
Frequency scores are based on crowdsourced interview reports. A higher score means the problem has been reported more often in recent Zalando interviews.
Very Likely
75-100%
Likely
50-74%
Sometimes
25-49%
Rare
0-24%
Zalando interviews focus heavily on greedy, array, 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. Zalando 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.
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Zalando has been reported to ask 6 distinct coding problems. The most common topics are greedy, array, string. 1 are Easy difficulty, 5 are Medium, and 0 are Hard. Problems are sorted by frequency - the ones at the top are asked most often.
Based on 6 reported problems, Zalando interviews are easier than average - only 0% Hard compared to 18% across all companies. 83% 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: greedy, array, 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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