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Snapchat Interview Questions (99)

Practice real interview problems from Snapchat

All99 Easy6 Medium62 Hard31

Status	Title	Solution	Practice	Difficulty	Companies	Topics
	4. Median of Two Sorted Arrays	Solution	Solve	Hard	Accenture+46	Array Binary Search+1
	37. Sudoku Solver	Solution	Solve	Hard	Adobe+17	Array Backtracking+2
	44. Wildcard Matching	Solution	Solve	Hard	Amazon+17	Dynamic Programming Greedy+2
	76. Minimum Window Substring	Solution	Solve	Hard	Adobe+33	Hash Table Sliding Window+1
	123. Best Time to Buy and Sell Stock III	Solution	Solve	Hard	Adobe+14	Array Dynamic Programming
	124. Binary Tree Maximum Path Sum	Solution	Solve	Hard	Amazon+24	Binary Tree Depth-First Search+2
	127. Word Ladder	Solution	Solve	Hard	Adobe+36	Breadth-First Search Hash Table+1
	140. Word Break II	Solution	Solve	Hard	Amazon+13	Array Backtracking+5
	212. Word Search II	Solution	Solve	Hard	Airbnb+20	Array Backtracking+3
	224. Basic Calculator	Solution	Solve	Hard	Adobe+23	Math Recursion+2
	269. Alien Dictionary	Solution	Solve	Hard	Airbnb+16	Array Breadth-First Search+4
	296. Best Meeting Point	Solution	Solve	Hard	Amazon+8	Array Math+2
	312. Burst Balloons	Solution	Solve	Hard	Amazon+13	Array Dynamic Programming
	332. Reconstruct Itinerary	Solution	Solve	Hard	Amazon+21	Depth-First Search Eulerian Circuit+1
	403. Frog Jump	Solution	Solve	Hard	Amazon+8	Array Dynamic Programming
	460. LFU Cache	Solution	Solve	Hard	Amazon+30	Design Doubly-Linked List+2
	480. Sliding Window Median	Solution	Solve	Hard	Amazon+9	Array Hash Table+2
	527. Word Abbreviation	Solution	Solve	Hard	Applied Intuition+2	Array Greedy+3
	772. Basic Calculator III	Solution	Solve	Hard	Amazon+13	Math Recursion+2
	780. Reaching Points	Solution	Solve	Hard	Amazon+12	Math
	803. Bricks Falling When Hit	Solution	Solve	Hard	Google+2	Array Matrix+1
	815. Bus Routes	Solution	Solve	Hard	Amazon+16	Array Breadth-First Search+1
	827. Making A Large Island	Solution	Solve	Hard	Airbnb+16	Array Breadth-First Search+3
	964. Least Operators to Express Number	Solution	Solve	Hard	Snapchat	Dynamic Programming Math+1
	1074. Number of Submatrices That Sum to Target	Solution	Solve	Hard	Amazon+3	Array Hash Table+2
	1293. Shortest Path in a Grid with Obstacles Elimination	Solution	Solve	Hard	Adobe+13	Array Breadth-First Search+1
	1639. Number of Ways to Form a Target String Given a Dictionary	Solution	Solve	Hard	Amazon+7	Array Dynamic Programming+1
	2097. Valid Arrangement of Pairs	Solution	Solve	Hard	Amazon+3	Depth-First Search Eulerian Circuit+1
	2258. Escape the Spreading Fire	Solution	Solve	Hard	Amazon+3	Array Binary Search+2
	2296. Design a Text Editor	Solution	Solve	Hard	Amazon+12	Design Doubly-Linked List+4
	2589. Minimum Time to Complete All Tasks	Solution	Solve	Hard	Google+1	Array Binary Search+3

Median of Two Sorted Arrays

Hard✓ Solution📹 Video

Accenture+46

Array Binary Search Divide and Conquer

Sudoku Solver

Hard✓ Solution

Adobe+17

Array Backtracking Hash Table+1

Wildcard Matching

Hard✓ Solution

Amazon+17

Dynamic Programming Greedy Recursion+1

Minimum Window Substring

Hard✓ Solution

Adobe+33

Hash Table Sliding Window String

Best Time to Buy and Sell Stock III

Hard✓ Solution

Adobe+14

Array Dynamic Programming

Binary Tree Maximum Path Sum

Hard✓ Solution

Amazon+24

Binary Tree Depth-First Search Dynamic Programming+1

Word Ladder

Hard✓ Solution📹 Video

Adobe+36

Breadth-First Search Hash Table String

Word Break II

Hard✓ Solution

Amazon+13

Array Backtracking Dynamic Programming+4

Word Search II

Hard✓ Solution📹 Video

Airbnb+20

Array Backtracking Matrix+2

Basic Calculator

Hard✓ Solution

Adobe+23

Math Recursion Stack+1

Alien Dictionary

Hard✓ Solution

Airbnb+16

Array Breadth-First Search Depth-First Search+3

Best Meeting Point

Hard✓ Solution📹 Video

Amazon+8

Array Math Matrix+1

Burst Balloons

Hard✓ Solution

Amazon+13

Array Dynamic Programming

Reconstruct Itinerary

Hard

Amazon+21

Depth-First Search Eulerian Circuit Graph

Frog Jump

Hard✓ Solution

Amazon+8

Array Dynamic Programming

LFU Cache

Hard✓ Solution

Amazon+30

Design Doubly-Linked List Hash Table+1

Sliding Window Median

Hard✓ Solution📹 Video

Amazon+9

Array Hash Table Heap (Priority Queue)+1

Word Abbreviation

Hard✓ Solution

Applied Intuition+2

Array Greedy Sorting+2

Basic Calculator III

Hard✓ Solution

Amazon+13

Math Recursion Stack+1

Reaching Points

Hard✓ Solution

Amazon+12

Bricks Falling When Hit

Hard✓ Solution

Google+2

Array Matrix Union Find

Bus Routes

Hard✓ Solution📹 Video

Amazon+16

Array Breadth-First Search Hash Table

Making A Large Island

Hard✓ Solution

Airbnb+16

Array Breadth-First Search Depth-First Search+2

Least Operators to Express Number

Hard📹 Video

Snapchat

Dynamic Programming Math Memoization

Number of Submatrices That Sum to Target

Hard✓ Solution📹 Video

Amazon+3

Array Hash Table Matrix+1

Shortest Path in a Grid with Obstacles Elimination

Hard✓ Solution

Adobe+13

Array Breadth-First Search Matrix

Number of Ways to Form a Target String Given a Dictionary

Hard✓ Solution

Amazon+7

Array Dynamic Programming String

Valid Arrangement of Pairs

Hard✓ Solution

Amazon+3

Depth-First Search Eulerian Circuit Graph

Escape the Spreading Fire

Hard

Amazon+3

Array Binary Search Breadth-First Search+1

Design a Text Editor

Hard

Amazon+12

Design Doubly-Linked List Linked List+3

Minimum Time to Complete All Tasks

Hard

Google+1

Array Binary Search Greedy+2