Problems

3,858+ problems · 930 Easy · 2018 Medium · 910 Hard

Active:MediumPremium· 455 results

Title	Solution	Practice	Difficulty	Companies	Topics
3308. Find Top Performing Driver	Solution	Solve	Medium	-	Database
3322. Premier League Table Ranking III	Solution	Solve	Medium	-	Database
3323. Minimize Connected Groups by Inserting Interval	Solution	Solve	Medium	De Shaw	Array Binary Search+2
3328. Find Cities in Each State II	Solution	Solve	Medium	-	Database
3338. Second Highest Salary II	Solution	Solve	Medium	-	Database
3339. Find the Number of K-Even Arrays	Solution	Solve	Medium	-	Dynamic Programming
3344. Maximum Sized Array	Solution	Solve	Medium	-	Binary Search Bit Manipulation
3874. Valid Subarrays With Exactly One Peak	Solution	Solve	Medium	-
3865. Reverse K Subarrays	Solution	Solve	Medium	-	Array Two Pointers
3851. Maximum Requests Without Violating the Limit	Solution	Solve	Medium	-	Array Greedy+3
3860. Unique Email Groups	Solution	Solve	Medium	-	Array Hash Table+1
3837. Delayed Count of Equal Elements	Solution	Solve	Medium	-	Array Counting+1
3831. Median of a Binary Search Tree Level	Solution	Solve	Medium	-	Binary Search Tree Binary Tree+3
3817. Good Indices in a Digit String	Solution	Solve	Medium	-	Math String
3822. Design Order Management System	Solution	Solve	Medium	Optiver	Design Hash Table
3807. Minimum Cost to Repair Edges to Traverse a Graph	Solution	Solve	Medium	-	Binary Search Breadth-First Search+1
3792. Sum of Increasing Product Blocks	Solution	Solve	Medium	-	Math Simulation
3846. Total Distance to Type a String Using One Finger	Solution	Solve	Medium	-	Hash Table String
3763. Maximum Total Sum with Threshold Constraints	Solution	Solve	Medium	-	Array Greedy+2
3787. Find Diameter Endpoints of a Tree	Solution	Solve	Medium	Agoda	Breadth-First Search Graph+1
3773. Maximum Number of Equal Length Runs	Solution	Solve	Medium	-	Counting Hash Table+1
3758. Convert Number Words to Digits	Solution	Solve	Medium	-	String Trie
3778. Minimum Distance Excluding One Maximum Weighted Edge	Solution	Solve	Medium	-
3744. Find Kth Character in Expanded String	Solution	Solve	Medium	-	String
3730. Maximum Calories Burnt from Jumps	Solution	Solve	Medium	Amazon	Array Greedy+2
3717. Minimum Operations to Make the Array Beautiful	Solution	Solve	Medium	-	Array Dynamic Programming
3711. Maximum Transactions Without Negative Balance	Solution	Solve	Medium	Paytm	Array Greedy+1
3706. Maximum Distance Between Unequal Words in Array II	Solution	Solve	Medium	-	Array String
3682. Minimum Index Sum of Common Elements	Solution	Solve	Medium	-	Array Hash Table
3672. Sum of Weighted Modes in Subarrays	Solution	Solve	Medium	-	Array Counting+3
3656. Determine if a Simple Graph Exists	Solution	Solve	Medium	-	Array Binary Search+3
3641. Longest Semi-Repeating Subarray	Solution	Solve	Medium	-	Array Hash Table+1
3647. Maximum Weight in Two Bags	Solution	Solve	Medium	-	Array Dynamic Programming
3631. Sort Threats by Severity and Exploitability	Solution	Solve	Medium	-	Array Sorting
3616. Number of Student Replacements	Solution	Solve	Medium	-	Array Simulation
3610. Minimum Number of Primes to Sum to Target	Solution	Solve	Medium	Amazon	Array Dynamic Programming+2
3595. Once Twice	Solution	Solve	Medium	-	Array Bit Manipulation
3596. Minimum Cost Path with Alternating Directions I	Solution	Solve	Medium	-	Brainteaser Math
3565. Sequential Grid Path Cover	Solution	Solve	Medium	-	Array Matrix+1
3555. Smallest Subarray to Sort in Every Sliding Window	Solution	Solve	Medium	-	Array Greedy+4
3540. Minimum Time to Visit All Houses	Solution	Solve	Medium	Salesforce	Array Prefix Sum
3520. Minimum Threshold for Inversion Pairs Count	Solution	Solve	Medium	-	Array Binary Indexed Tree+2
3511. Make a Positive Array	Solution	Solve	Medium	UKG	Array Greedy+1
3496. Maximize Score After Pair Deletions	Solution	Solve	Medium	Drw	Array Greedy
3481. Apply Substitutions	Solution	Solve	Medium	Google	Array Breadth-First Search+5
3476. Maximize Profit from Task Assignment	Solution	Solve	Medium	-	Array Greedy+2
3466. Maximum Coin Collection	Solution	Solve	Medium	Uber	Array Dynamic Programming
3460. Longest Common Prefix After at Most One Removal	Solution	Solve	Medium	-	String Two Pointers
3437. Permutations III	Solution	Solve	Medium	Goldman Sachs	Array Backtracking
3431. Minimum Unlocked Indices to Sort Nums	Solution	Solve	Medium	-	Array Hash Table