•PRACTICE

Two Pointers Interview Questions

30 Two Pointers problems asked across FAANG and top tech companies. Approach hints, optimal solutions, and related problems.

Filter by company

Clear all ✕
Amazon (10)Apple (5)Atlassian (4)Databricks (2)Google (10)Meta (11)Microsoft (7)OpenAI (1)Oracle (9)Salesforce (4)Uber (2)Walmart (8)

Filter by topic

Array (178)Backtracking (17)BFS (23)Binary Search (34)Binary Tree (13)Bit Manipulation (16)Breadth-First Search (20)Counting (7)Data Stream (6)Database (6)Depth-First Search (27)Design (37)DFS (24)Divide and Conquer (7)Doubly-Linked List (5)DP (10)Dynamic Programming (39)Graph (6)Graph Theory (13)Greedy (31)Hash Table (87)Heap (12)Heap (Priority Queue) (13)Linked List (15)Math (32)Matrix (22)Monotonic Stack (6)Ordered Set (8)Prefix Sum (11)Queue (10)Recursion (7)Simulation (11)Sliding Window (21)Sorting (45)Stack (24)String (85)Topological Sort (6)Tree (30)Trie (10)Two Pointers (30)Union-Find (13)
🔒

to save your progress.

✓ 0ProblemDifficultyCompaniesBreakdown / SolutionLeetCode
3SumMedium8 companiesView breakdown →
Container With Most WaterMedium7 companiesView breakdown →
Trapping Rain WaterHard7 companiesView breakdown →
Move ZeroesEasy4 companiesView breakdown →
Permutation in StringMedium3 companiesView breakdown →
Sort ColorsMedium3 companiesView breakdown →
Remove Duplicates from Sorted ArrayEasy4 companiesView breakdown →
Rotate ArrayMedium4 companiesView breakdown →
Merge Sorted ArrayEasy4 companiesView breakdown →
Two Sum II - Input Array Is SortedMedium3 companiesView breakdown →
Valid PalindromeEasy2 companiesView breakdown →
Squares of a Sorted ArrayEasy2 companiesView breakdown →
Next PermutationMedium2 companiesView breakdown →
Maximum Number of Points from Grid QueriesHard1 companiesView breakdown →
3Sum ClosestMedium1 companiesView breakdown →
4SumMedium1 companiesView breakdown →
Advantage ShuffleMedium1 companiesView breakdown →
Linked List CycleEASY1 companiesView breakdown →
Interval List IntersectionsMEDIUM1 companiesView breakdown →
Find the Duplicate NumberMEDIUM1 companiesView breakdown →
Find the Index of the First Occurrence in a StringEASY1 companiesView breakdown →
Longest String ChainMEDIUM1 companiesView breakdown →
Longest Mountain in ArrayMEDIUM1 companiesView breakdown →
Find K Closest ElementsMEDIUM1 companiesView breakdown →
Merge Strings AlternatelyEASY1 companiesView breakdown →
Remove ElementEASY1 companiesView breakdown →
Number of Perfect PairsMEDIUM1 companiesView breakdown →
String CompressionMEDIUM1 companiesView breakdown →
Lowest Common Ancestor of a Binary Tree IIIMEDIUM1 companiesView breakdown →
Happy NumberEasy4 companiesView breakdown →

Practice with a Mock Interview

Solve these Two Pointers problems under real interview pressure with our AI interviewer.

Start Mock Interview →