Dashboard Questions Topics Companies Sheets

Array

Topic

1,779 coding problems covering Array concepts. Master this topic and improve your problem-solving skills.

1,779

Problems

370

Easy

963

Medium

446

Hard

Difficulty

All1779 Easy370 Medium963 Hard446

Title	Solve	Difficulty	Companies	Topics
4. Median of Two Sorted Arrays	Solve	Hard	Accolite+38	Array Binary Search+1
37. Sudoku Solver	Solve	Hard	Adobe+11	Array Backtracking+2
41. First Missing Positive	Solve	Hard	Adobe+7	Array Hash Table
42. Trapping Rain Water	Solve	Hard	Adobe+21	Array Dynamic Programming+3
51. N-Queens	Solve	Hard	Adobe+7	Array Backtracking
68. Text Justification	Solve	Hard	Adobe+25	Array Simulation+1
84. Largest Rectangle in Histogram	Solve	Hard	Adobe+7	Array Monotonic Stack+1
85. Maximal Rectangle	Solve	Hard	Amazon+2	Array Dynamic Programming+3
123. Best Time to Buy and Sell Stock III	Solve	Hard	Amazon+2	Array Dynamic Programming
135. Candy	Solve	Hard	Adobe+21	Array Greedy
140. Word Break II	Solve	Hard	Adobe+7	Array Backtracking+5
149. Max Points on a Line	Solve	Hard	Amazon+4	Array Geometry+2
154. Find Minimum in Rotated Sorted Array II	Solve	Hard	Google	Array Binary Search
158. Read N Characters Given read4 II - Call Multiple Times	Solve	Hard	Facebook+3	Array Interactive+1
174. Dungeon Game	Solve	Hard	Amazon+1	Array Dynamic Programming+1
188. Best Time to Buy and Sell Stock IV	Solve	Hard	Amazon+4	Array Dynamic Programming
212. Word Search II	Solve	Hard	Amazon+9	Array Backtracking+3
218. The Skyline Problem	Solve	Hard	Cruise Automation+3	Array Binary Indexed Tree+5
220. Contains Duplicate III	Solve	Hard	Adobe+3	Array Bucket Sort+3
239. Sliding Window Maximum	Solve	Hard	Accion Labs India+66	Array Heap (Priority Queue)+3
248. Strobogrammatic Number III	Solve	Hard	Google	Array Recursion+1
265. Paint House II	Solve	Hard	Facebook+2	Array Dynamic Programming
269. Alien Dictionary	Solve	Hard	Airbnb+8	Array Breadth-First Search+4
296. Best Meeting Point	Solve	Hard	Expedia+2	Array Math+2
302. Smallest Rectangle Enclosing Black Pixels	Solve	Hard	Google	Array Binary Search+3
305. Number of Islands II	Solve	Hard	Google+1	Array Hash Table+1
312. Burst Balloons	Solve	Hard	Amazon+5	Array Dynamic Programming
315. Count of Smaller Numbers After Self	Solve	Hard	Adobe+3	Array Binary Indexed Tree+5
317. Shortest Distance from All Buildings	Solve	Hard	DoorDash+3	Array Breadth-First Search+1
321. Create Maximum Number	Solve	Hard	Apple+1	Array Greedy+3
327. Count of Range Sum	Solve	Hard	Adobe+2	Array Binary Indexed Tree+5
329. Longest Increasing Path in a Matrix	Solve	Hard	Amazon+14	Array Breadth-First Search+6
330. Patching Array	Solve	Hard	Amazon	Array Greedy
335. Self Crossing	Solve	Hard	Amazon+1	Array Geometry+1
336. Palindrome Pairs	Solve	Hard	Airbnb+5	Array Hash Table+2
354. Russian Doll Envelopes	Solve	Hard	Google+1	Array Binary Search+2
363. Max Sum of Rectangle No Larger Than K	Solve	Hard	Dunzo	Array Binary Search+3
381. Insert Delete GetRandom O(1) - Duplicates allowed	Solve	Hard	Affirm+2	Array Design+3
391. Perfect Rectangle	Solve	Hard	Apple+1	Array Line Sweep
403. Frog Jump	Solve	Hard	Adobe+21	Array Dynamic Programming
407. Trapping Rain Water II	Solve	Hard	Google	Array Breadth-First Search+2
410. Split Array Largest Sum	Solve	Hard	Amazon+5	Array Binary Search+3
411. Minimum Unique Word Abbreviation	Solve	Hard	Google	Array Backtracking+2
425. Word Squares	Solve	Hard	Google	Array Backtracking+2
446. Arithmetic Slices II - Subsequence	Solve	Hard	Adobe+3	Array Dynamic Programming
465. Optimal Account Balancing	Solve	Hard	Affirm+3	Array Backtracking+3
472. Concatenated Words	Solve	Hard	Amazon+1	Array Depth-First Search+3
480. Sliding Window Median	Solve	Hard	Facebook+3	Array Hash Table+2
493. Reverse Pairs	Solve	Hard	Amazon	Array Binary Indexed Tree+5
499. The Maze III	Solve	Hard	Google	Array Breadth-First Search+6