Pinterest LeetCode Interview Questions

Practice 45 coding problems currently tagged to Pinterest. Use the frequency and topic signals to build a focused software engineering interview practice plan.

Last updated: September 28, 2026

1 Easy

28 Medium

16 Hard

Top Topics at Pinterest

Array Sorting String Hash Table Heap (Priority Queue)

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Problem	DifficultyDiff	Frequency	Topics	Action
Reconstruct Itinerary 100%	HardH	100%	Array String+7	Solve→
Optimal Account Balancing 96.5%	HardH	96.5%	Array Dynamic Programming+3	Solve→
Bus Routes 94.1%	HardH	94.1%	Array Hash Table+1	Solve→
Expression Add Operators 90.2%	HardH	90.2%	Math String+1	Solve→
Shortest Way to Form String 81.7%	MediumM	81.7%	Two Pointers String+2	Solve→
Shortest Path in a Grid with Obstacles Elimination 79%	HardH	79%	Array Breadth-First Search+1	Solve→
Coin Change 77%	MediumM	77%	Array Dynamic Programming+3	Solve→
Count Subarrays With Score Less Than K 77%	HardH	77%	Array Binary Search+2	Solve→
Count and Say 69.2%	MediumM	69.2%	String	Solve→
Design Search Autocomplete System 69.2%	HardH	69.2%	String Depth-First Search+5	Solve→
Maximum Profit in Job Scheduling 67.6%	HardH	67.6%	Array Binary Search+2	Solve→
Is Subsequence 67.6%	EasyE	67.6%	Two Pointers String+1	Solve→
Split Array Largest Sum 67.6%	HardH	67.6%	Array Binary Search+3	Solve→
Find Median from Data Stream 65.8%	HardH	65.8%	Two Pointers Design+3	Solve→
Longest Word in Dictionary 63.8%	MediumM	63.8%	Array Hash Table+3	Solve→
Target Sum 63.8%	MediumM	63.8%	Array Dynamic Programming+3	Solve→
Find Median Given Frequency of Numbers 61.5%	HardH	61.5%	Database	Solve→
Meeting Rooms III 61.5%	HardH	61.5%	Array Hash Table+3	Solve→
Delete Nodes And Return Forest 59%	MediumM	59%	Array Hash Table+3	Solve→
Sparse Matrix Multiplication 56%	MediumM	56%	Array Hash Table+2	Solve→
Put Boxes Into the Warehouse II 56%	MediumM	56%	Array Greedy+1	Solve→
Put Boxes Into the Warehouse I 56%	MediumM	56%	Array Greedy+1	Solve→
Design A Leaderboard 56%	MediumM	56%	Hash Table Design+1	Solve→
Multiply Strings 52.5%	MediumM	52.5%	Math String+1	Solve→
Find Minimum Time to Finish All Jobs 52.5%	HardH	52.5%	Array Dynamic Programming+3	Solve→

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Reorganize String 48.3%	MediumM	48.3%	Hash Table String+4	Solve→
Letter Combinations of a Phone Number 42.8%	MediumM	42.8%	Hash Table String+1	Solve→
String Compression 42.8%	MediumM	42.8%	Two Pointers String	Solve→
Candy Crush 42.8%	MediumM	42.8%	Array Two Pointers+2	Solve→
Dot Product of Two Sparse Vectors 42.8%	MediumM	42.8%	Array Hash Table+3	Solve→
Accounts Merge 42.8%	MediumM	42.8%	Array Hash Table+5	Solve→
Combination Sum 42.8%	MediumM	42.8%	Array Backtracking	Solve→
Text Justification 42.8%	HardH	42.8%	Array String+1	Solve→
Meeting Rooms II 35.2%	MediumM	35.2%	Array Two Pointers+4	Solve→
Top K Frequent Elements 35.2%	MediumM	35.2%	Array Hash Table+6	Solve→
The Maze 35.2%	MediumM	35.2%	Array Depth-First Search+2	Solve→
Find First and Last Position of Element in Sorted Array 35.2%	MediumM	35.2%	Array Binary Search	Solve→
Employee Free Time 35.2%	HardH	35.2%	Array Sweep Line+2	Solve→
Number of Islands 35.2%	MediumM	35.2%	Array Depth-First Search+3	Solve→
Merge k Sorted Lists 35.2%	HardH	35.2%	Linked List Divide and Conquer+3	Solve→
Number of Provinces 35.2%	MediumM	35.2%	Depth-First Search Breadth-First Search+2	Solve→
Corporate Flight Bookings 35.2%	MediumM	35.2%	Array Prefix Sum	Solve→
Merge Intervals 35.2%	MediumM	35.2%	Array Sorting+1	Solve→
Rotting Oranges 35.2%	MediumM	35.2%	Array Breadth-First Search+1	Solve→
Add Two Numbers II 35.2%	MediumM	35.2%	Linked List Math+1	Solve→

Explore company practice sets with a similar number of tagged coding questions.

Frequently Asked Questions

What LeetCode problems are tagged to Pinterest?

Our current Pinterest practice dataset contains 45 tagged coding problems, including Reconstruct Itinerary, Optimal Account Balancing, Bus Routes. The difficulty breakdown is 1 Easy, 28 Medium, and 16 Hard problems.

How should I prepare for a Pinterest coding interview?

Focus on the most frequently asked problems first, especially those with high frequency scores. Pinterest interviews typically emphasize Array and Sorting. Practice explaining your thought process while coding.

What is the difficulty level of Pinterest coding interviews?

Based on our data, Pinterest interviews include 1 Easy (2%), 28 Medium (62%), and 16 Hard (36%) problems.

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Pinterest LeetCode Interview Questions

Practice 45 coding problems currently tagged to Pinterest. Use the frequency and topic signals to build a focused software engineering interview practice plan.

Last updated: September 28, 2026

1 Easy

28 Medium

16 Hard

Top Topics at Pinterest

Array Sorting String Hash Table Heap (Priority Queue)

Ace your Pinterest interview with AI

Get real-time AI assistance during your actual interview. Invisible to screensharing.

Start Free Trial

Problem	DifficultyDiff	Frequency	Topics	Action
Reconstruct Itinerary 100%	HardH	100%	Array String+7	Solve→
Optimal Account Balancing 96.5%	HardH	96.5%	Array Dynamic Programming+3	Solve→
Bus Routes 94.1%	HardH	94.1%	Array Hash Table+1	Solve→
Expression Add Operators 90.2%	HardH	90.2%	Math String+1	Solve→
Shortest Way to Form String 81.7%	MediumM	81.7%	Two Pointers String+2	Solve→
Shortest Path in a Grid with Obstacles Elimination 79%	HardH	79%	Array Breadth-First Search+1	Solve→
Coin Change 77%	MediumM	77%	Array Dynamic Programming+3	Solve→
Count Subarrays With Score Less Than K 77%	HardH	77%	Array Binary Search+2	Solve→
Count and Say 69.2%	MediumM	69.2%	String	Solve→
Design Search Autocomplete System 69.2%	HardH	69.2%	String Depth-First Search+5	Solve→
Maximum Profit in Job Scheduling 67.6%	HardH	67.6%	Array Binary Search+2	Solve→
Is Subsequence 67.6%	EasyE	67.6%	Two Pointers String+1	Solve→
Split Array Largest Sum 67.6%	HardH	67.6%	Array Binary Search+3	Solve→
Find Median from Data Stream 65.8%	HardH	65.8%	Two Pointers Design+3	Solve→
Longest Word in Dictionary 63.8%	MediumM	63.8%	Array Hash Table+3	Solve→
Target Sum 63.8%	MediumM	63.8%	Array Dynamic Programming+3	Solve→
Find Median Given Frequency of Numbers 61.5%	HardH	61.5%	Database	Solve→
Meeting Rooms III 61.5%	HardH	61.5%	Array Hash Table+3	Solve→
Delete Nodes And Return Forest 59%	MediumM	59%	Array Hash Table+3	Solve→
Sparse Matrix Multiplication 56%	MediumM	56%	Array Hash Table+2	Solve→
Put Boxes Into the Warehouse II 56%	MediumM	56%	Array Greedy+1	Solve→
Put Boxes Into the Warehouse I 56%	MediumM	56%	Array Greedy+1	Solve→
Design A Leaderboard 56%	MediumM	56%	Hash Table Design+1	Solve→
Multiply Strings 52.5%	MediumM	52.5%	Math String+1	Solve→
Find Minimum Time to Finish All Jobs 52.5%	HardH	52.5%	Array Dynamic Programming+3	Solve→

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Reorganize String 48.3%	MediumM	48.3%	Hash Table String+4	Solve→
Letter Combinations of a Phone Number 42.8%	MediumM	42.8%	Hash Table String+1	Solve→
String Compression 42.8%	MediumM	42.8%	Two Pointers String	Solve→
Candy Crush 42.8%	MediumM	42.8%	Array Two Pointers+2	Solve→
Dot Product of Two Sparse Vectors 42.8%	MediumM	42.8%	Array Hash Table+3	Solve→
Accounts Merge 42.8%	MediumM	42.8%	Array Hash Table+5	Solve→
Combination Sum 42.8%	MediumM	42.8%	Array Backtracking	Solve→
Text Justification 42.8%	HardH	42.8%	Array String+1	Solve→
Meeting Rooms II 35.2%	MediumM	35.2%	Array Two Pointers+4	Solve→
Top K Frequent Elements 35.2%	MediumM	35.2%	Array Hash Table+6	Solve→
The Maze 35.2%	MediumM	35.2%	Array Depth-First Search+2	Solve→
Find First and Last Position of Element in Sorted Array 35.2%	MediumM	35.2%	Array Binary Search	Solve→
Employee Free Time 35.2%	HardH	35.2%	Array Sweep Line+2	Solve→
Number of Islands 35.2%	MediumM	35.2%	Array Depth-First Search+3	Solve→
Merge k Sorted Lists 35.2%	HardH	35.2%	Linked List Divide and Conquer+3	Solve→
Number of Provinces 35.2%	MediumM	35.2%	Depth-First Search Breadth-First Search+2	Solve→
Corporate Flight Bookings 35.2%	MediumM	35.2%	Array Prefix Sum	Solve→
Merge Intervals 35.2%	MediumM	35.2%	Array Sorting+1	Solve→
Rotting Oranges 35.2%	MediumM	35.2%	Array Breadth-First Search+1	Solve→
Add Two Numbers II 35.2%	MediumM	35.2%	Linked List Math+1	Solve→