Dashboard Questions Topics Companies Sheets

Hash Table

Topic

645 coding problems covering Hash Table concepts. Master this topic and improve your problem-solving skills.

645

Problems

158

Easy

383

Medium

104

Hard

Difficulty

All645 Easy158 Medium383 Hard104

Title	Solve	Difficulty	Companies	Topics
2384. Largest Palindromic Number	Solve	Medium	Adobe+3	Counting Greedy+2
2385. Amount of Time for Binary Tree to Be Infected	Solve	Medium	Adobe+6	Binary Tree Breadth-First Search+3
2395. Find Subarrays With Equal Sum	Solve	Easy	Adobe+1	Array Hash Table
2399. Check Distances Between Same Letters	Solve	Easy	-	Array Hash Table+1
2402. Meeting Rooms III	Solve	Hard	Amazon+4	Array Hash Table+3
2404. Most Frequent Even Element	Solve	Easy	-	Array Counting+1
2405. Optimal Partition of String	Solve	Medium	Amazon+1	Greedy Hash Table+1
2408. Design SQL	Solve	Medium	Amazon	Array Design+2
2418. Sort the People	Solve	Easy	Adobe+2	Array Hash Table+2
2421. Number of Good Paths	Solve	Hard	Google	Array Graph+4
2423. Remove Letter To Equalize Frequency	Solve	Easy	Bloomberg+1	Counting Hash Table+1
2434. Using a Robot to Print the Lexicographically Smallest String	Solve	Medium	Amazon	Greedy Hash Table+2
2441. Largest Positive Integer That Exists With Its Negative	Solve	Easy	Microsoft	Array Hash Table+2
2442. Count Number of Distinct Integers After Reverse Operations	Solve	Medium	Google	Array Counting+2
2451. Odd String Difference	Solve	Easy	Visa	Array Hash Table+1
2453. Destroy Sequential Targets	Solve	Medium	Intuit	Array Counting+1
2456. Most Popular Video Creator	Solve	Medium	TikTok	Array Hash Table+3
2461. Maximum Sum of Distinct Subarrays With Length K	Solve	Medium	Amazon+1	Array Hash Table+1
2465. Number of Distinct Averages	Solve	Easy	Amazon	Array Hash Table+2
2475. Number of Unequal Triplets in Array	Solve	Easy	Amazon+1	Array Hash Table+1
2488. Count Subarrays With Median K	Solve	Hard	Google+1	Array Hash Table+1
2489. Number of Substrings With Fixed Ratio	Solve	Medium	Intuit	Hash Table Math+2
2491. Divide Players Into Teams of Equal Skill	Solve	Medium	Expedia+1	Array Hash Table+2
2499. Minimum Total Cost to Make Arrays Unequal	Solve	Hard	Flipkart+1	Array Counting+2
2501. Longest Square Streak in an Array	Solve	Medium	Amazon	Array Binary Search+3
2502. Design Memory Allocator	Solve	Medium	Amazon	Array Design+2
2506. Count Pairs Of Similar Strings	Solve	Easy	Oracle	Array Bit Manipulation+3
2508. Add Edges to Make Degrees of All Nodes Even	Solve	Hard	HRT	Graph Hash Table
2512. Reward Top K Students	Solve	Medium	Amazon+1	Array Hash Table+3
2514. Count Anagrams	Solve	Hard	Mathworks	Combinatorics Counting+3
2516. Take K of Each Character From Left and Right	Solve	Medium	-	Hash Table Sliding Window+1
2521. Distinct Prime Factors of Product of Array	Solve	Medium	-	Array Hash Table+2
2524. Maximum Frequency Score of a Subarray	Solve	Hard	PayPal	Array Hash Table+3
2526. Find Consecutive Integers from a Data Stream	Solve	Medium	Intel	Counting Data Stream+3
2531. Make Number of Distinct Characters Equal	Solve	Medium	Google	Counting Hash Table+1
2537. Count the Number of Good Subarrays	Solve	Medium	Amazon	Array Hash Table+1
2539. Count the Number of Good Subsequences	Solve	Medium	Oracle+1	Combinatorics Counting+3
2540. Minimum Common Value	Solve	Easy	Apple+1	Array Binary Search+2
2547. Minimum Cost to Split an Array	Solve	Hard	Indeed	Array Counting+2
2549. Count Distinct Numbers on Board	Solve	Easy	Oracle	Array Hash Table+2
2554. Maximum Number of Integers to Choose From a Range I	Solve	Medium	PayPal	Array Binary Search+3
2561. Rearranging Fruits	Solve	Hard	Oracle	Array Greedy+1
2564. Substring XOR Queries	Solve	Medium	Trilogy	Array Bit Manipulation+2
2570. Merge Two 2D Arrays by Summing Values	Solve	Easy	Google	Array Hash Table+1
2581. Count Number of Possible Root Nodes	Solve	Hard	-	Array Depth-First Search+3
2584. Split the Array to Make Coprime Products	Solve	Hard	Zomato	Array Hash Table+2
2588. Count the Number of Beautiful Subarrays	Solve	Medium	-	Array Bit Manipulation+2
2590. Design a Todo List	Solve	Medium	-	Array Design+3
2593. Find Score of an Array After Marking All Elements	Solve	Medium	-	Array Hash Table+3
2597. The Number of Beautiful Subsets	Solve	Medium	Facebook+1	Array Backtracking+5