Array Coding Problems for Interviews Last Updated : 18 Sep, 2025 Comments Improve Suggest changes Like Article Like Report The following list of array coding problems covers a range of difficulty levels, from easy to hard, to help candidates prepare for interviews.Easy ProblemsSecond Largest ElementThird Largest Element Reverse an ArrayReverse Array in Groups Rotate ArrayThree Great CandidatesMax Consecutive OnesMove All Zeroes To End Wave ArrayPlus OneStock Buy and Sell – One Transaction Stock Buy and Sell – Multiple Transactions Remove Duplicates from Sorted ArrayAlternate Positive Negative Array LeadersMissing and Repeating in ArrayMissing Ranges of Numbers Sum of all SubarraysMedium ProblemsNext PermutationMajority ElementMajority Element II Minimize the Heights IIMaximum Subarray SumMaximum Product SubarrayProduct of Array Except SelfSubarrays with Product Less Than KSplit Into Three Equal Sum SegmentsMaximum Consecutive 1s After Flipping 0sLast Moment Before Ants Fall Out of PlankFind 0 with Farthest 1s in a Binary Intersection of Interval ListsRearrange Array Elements by SignMeeting Scheduler for Two PersonsLongest Mountain SubarrayTransform and Sort ArrayMinimum Swaps To Group All OnesMinimum Moves To Equalize ArrayMinimum Indices To Equal Even-Odd SumsHard ProblemsTrapping Rain WaterMaximum Circular Subarray SumSmallest Missing Positive NumberJump GameClosest Subsequence SumSmallest Non-Representable Sum in ArraySmallest Range Having Elements From K Lists Count Subarrays with K Distinct ElementsNext Smallest PalindromeMaximum Sum Among All Rotations Related Articles:String Coding Problems for InterviewsTree Coding Problems for InterviewsGraph Coding Problems for InterviewsDynamic Programming Coding Problems for InterviewsSorting Coding Problems for InterviewsSearching Coding Problems for InterviewsBinary Search Tree Coding Problems for Interviews ARRAY PRACTICE PROBLEMS | Must do Array Questions | DSA Problems Comment More info V vivekpatel7202 Follow Improve Article Tags : DSA GFG Sheets Explore DSA FundamentalsLogic Building Problems 2 min read Analysis of Algorithms 1 min read Data StructuresArray Data Structure 3 min read String in Data Structure 2 min read Hashing in Data Structure 2 min read Linked List Data Structure 2 min read Stack Data Structure 2 min read Queue Data Structure 2 min read Tree Data Structure 2 min read Graph Data Structure 3 min read Trie Data Structure 15+ min read AlgorithmsSearching Algorithms 2 min read Sorting Algorithms 3 min read Introduction to Recursion 14 min read Greedy Algorithms 3 min read Graph Algorithms 3 min read Dynamic Programming or DP 3 min read Bitwise Algorithms 4 min read AdvancedSegment Tree 2 min read Binary Indexed Tree or Fenwick Tree 15 min read Square Root (Sqrt) Decomposition Algorithm 15+ min read Binary Lifting 15+ min read Geometry 2 min read Interview PreparationInterview Corner 3 min read GfG160 3 min read Practice ProblemGeeksforGeeks Practice - Leading Online Coding Platform 6 min read Problem of The Day - Develop the Habit of Coding 5 min read Like