Problem database last updated: June 20, 2025
9 problems · 3 Easy, 4 Medium, 2 Hard · Ranked #157 of 458
3 Easy
33% · avg 23%
4 Medium
44% · avg 59%
2 Hard
22% · avg 18%
Based on 9 reported problems, Warnermedia interviews are slightly harder than average - 22% Hard vs 18% across all companies.
Compared to the industry average, Warnermedia puts unusual emphasis on math (33.3% of problems, 2.6x the industry average), two-pointers (22.2% of problems, 1.6x the industry average), sorting (22.2% of problems, 1.5x the industry average). If you're short on time, these are the categories to double down on.
The most common topics are array (44.4%), math (33.3%), string (33.3%), two-pointers (22.2%). Problems below are sorted by frequency, the ones at the top are asked most often.
| Problem | Difficulty | Frequency | Topics | |
|---|---|---|---|---|
Integer to English Words Convert a non-negative integer num to its English words representation. | Hard | Very Likely | mathstringrecursion | Solve |
Product of Array Except Self Given an integer array nums, return an array answer such that answer[i] is equal to the product of all the elements of nums except nums[i]. | Medium | Very Likely | arrayprefix-sum | Solve |
Game of Life According to Wikipedia's article: "The Game of Life, also known simply as Life, is a cellular automaton devised by the British mathematician John Horton Conway... | Medium | Very Likely | arraymatrixsimulation | Solve |
Merge k Sorted Lists You are given an array of k linked-lists lists, each linked-list is sorted in ascending order. | Hard | Very Likely | linked-listdivide-and-conquerheap-priority-queue | Solve |
Find the Index of the First Occurrence in a String Given two strings needle and haystack, return the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack. | Easy | Very Likely | two-pointersstringstring-matching | Solve |
Missing Number Given an array nums containing n distinct numbers in the range [0, n], return the only number in the range that is missing from the array. | Easy | Very Likely | arrayhash-tablemath | Solve |
Flatten Nested List Iterator You are given a nested list of integers nestedList. Each element is either an integer or a list whose elements may also be integers or other lists. Implement an... | Medium | Likely | stacktreedepth-first-search | Solve |
Roman to Integer Roman numerals are represented by seven different symbols: I, V, X, L, C, D and M. | Easy | Likely | hash-tablemathstring | Solve |
3Sum Given an integer array nums, return all the triplets [nums[i], nums[j], nums[k]] such that i != j, i != k, and j != k, and nums[i] + nums[j] + nums[k] == 0. | Medium | Likely | arraytwo-pointerssorting | Solve |
Integer to English Words
SolveConvert a non-negative integer num to its English words representation.
Product of Array Except Self
SolveGiven an integer array nums, return an array answer such that answer[i] is equal to the product of all the elements of nums except nums[i].
Game of Life
SolveAccording to Wikipedia's article: "The Game of Life, also known simply as Life, is a cellular automaton devised by the British mathematician John Horton Conway...
Merge k Sorted Lists
SolveYou are given an array of k linked-lists lists, each linked-list is sorted in ascending order.
Find the Index of the First Occurrence in a String
SolveGiven two strings needle and haystack, return the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack.
Missing Number
SolveGiven an array nums containing n distinct numbers in the range [0, n], return the only number in the range that is missing from the array.
Flatten Nested List Iterator
SolveYou are given a nested list of integers nestedList. Each element is either an integer or a list whose elements may also be integers or other lists. Implement an...
Roman to Integer
SolveRoman numerals are represented by seven different symbols: I, V, X, L, C, D and M.
3Sum
SolveGiven an integer array nums, return all the triplets [nums[i], nums[j], nums[k]] such that i != j, i != k, and j != k, and nums[i] + nums[j] + nums[k] == 0.
Frequency scores are based on crowdsourced interview reports. A higher score means the problem has been reported more often in recent Warnermedia interviews.
Very Likely
75-100%
Likely
50-74%
Sometimes
25-49%
Rare
0-24%
Warnermedia interviews focus heavily on array, math, 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. Warnermedia 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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Warnermedia has been reported to ask 9 distinct coding problems. The most common topics are array, math, string. 3 are Easy difficulty, 4 are Medium, and 2 are Hard. Problems are sorted by frequency - the ones at the top are asked most often.
Based on 9 reported problems, Warnermedia interviews are slightly harder than average - 22% Hard vs 18% across all companies. 44% 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, math, string. Practice solving them under time pressure and explaining your approach out loud. Mock interviews with AI can simulate the real experience.
Simulate a real Warnermedia coding interview with an AI interviewer. Get a scorecard with specific feedback on your problem-solving, code quality, and communication.
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