Problems

3,848+ problems · 928 Easy · 2014 Medium · 906 Hard

Active:Premium· 755 results

Title	Solution	Practice	Difficulty	Companies	Topics
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
3749. Evaluate Valid Expressions	Solution	Solve	Hard	-	Divide and Conquer Hash Table+3
3802. Number of Ways to Paint Sheets	Solution	Solve	Hard	-
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
3735. Lexicographically Smallest String After Reverse II	Solution	Solve	Hard	-	Binary Search Hash Function+3
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
3696. Maximum Distance Between Unequal Words in Array I	Solution	Solve	Easy	Walmart	Array String
3687. Library Late Fee Calculator	Solution	Solve	Easy	-	Array Simulation
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
3667. Sort Array By Absolute Value	Solution	Solve	Easy	Cognizant	Array Math+2
3662. Filter Characters by Frequency	Solution	Solve	Easy	Opentext	Counting Hash Table+1
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
3632. Subarrays with XOR at Least K	Solution	Solve	Hard	-	Array Bit Manipulation+2
3596. Minimum Cost Path with Alternating Directions I	Solution	Solve	Medium	-	Brainteaser Math
3581. Count Odd Letters from Number	Solution	Solve	Easy	-	Counting Hash Table+2
3571. Find the Shortest Superstring II	Solution	Solve	Easy	-	String
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
3549. Multiply Two Polynomials	Solution	Solve	Hard	-	Array Math
3540. Minimum Time to Visit All Houses	Solution	Solve	Medium	Salesforce	Array Prefix Sum
3526. Range XOR Queries with Subarray Reversals	Solution	Solve	Hard	-	Array Binary Tree+1
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
3491. Phone Number Prefix	Solution	Solve	Easy	-	Array Sorting+2
3481. Apply Substitutions	Solution	Solve	Medium	Google	Array Breadth-First Search+5
3476. Maximize Profit from Task Assignment	Solution	Solve	Medium	-	Array Greedy+2
3506. Find Time Required to Eliminate Bacterial Strains	Solution	Solve	Hard	-	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
3450. Maximum Students on a Single Bench	Solution	Solve	Easy	-	Array Hash Table
3437. Permutations III	Solution	Solve	Medium	Goldman Sachs	Array Backtracking
3431. Minimum Unlocked Indices to Sort Nums	Solution	Solve	Medium	-	Array Hash Table
3416. Subsequences with a Unique Middle Mode II	Solution	Solve	Hard	-	Array Combinatorics+2
3535. Unit Conversion II	Solution	Solve	Medium	-	Array Breadth-First Search+3
3406. Find the Lexicographically Largest String From the Box II	Solution	Solve	Hard	-	String Two Pointers