Problems

3,898+ problems · 938 Easy · 2039 Medium · 921 Hard

Title	Solution	Practice	Difficulty	Companies	Topics
3758. Convert Number Words to Digits	Solution	Solve	Medium	-	String Trie
3789. Minimum Cost to Acquire Required Items	Solution	Solve	Medium	-	Greedy Math
3771. Total Score of Dungeon Runs	Solution	Solve	Medium	-	Array Binary Search+1
3768. Minimum Inversion Count in Subarrays of Fixed Length	Solution	Solve	Hard	-	Array Segment Tree+1
3801. Minimum Cost to Merge Sorted Lists	Solution	Solve	Hard	-	Array Binary Search+3
3811. Number of Alternating XOR Partitions	Solution	Solve	Medium	-	Array Bit Manipulation+2
3759. Count Elements With at Least K Greater Values	Solution	Solve	Medium	-	Array Binary Search+3
3749. Evaluate Valid Expressions	Solution	Solve	Hard	-	Divide and Conquer Hash Table+3
3761. Minimum Absolute Distance Between Mirror Pairs	Solution	Solve	Medium	-	Array Hash Table+1
3784. Minimum Deletion Cost to Make All Characters Equal	Solution	Solve	Medium	-	Array Enumeration+2
3839. Number of Prefix Connected Groups	Solution	Solve	Medium	-	Array Counting+2
3756. Concatenate Non-Zero Digits and Multiply by Sum II	Solution	Solve	Medium	Google	Math Prefix Sum+1
3754. Concatenate Non-Zero Digits and Multiply by Sum I	Solution	Solve	Easy	-	Math
3757. Number of Effective Subsequences	Solution	Solve	Hard	-	Array Bit Manipulation+3
3802. Number of Ways to Paint Sheets	Solution	Solve	Hard	-
3781. Maximum Score After Binary Swaps	Solution	Solve	Medium	Amazon	Array Greedy+2
3804. Number of Centered Subarrays	Solution	Solve	Medium	-	Array Enumeration+1
3753. Total Waviness of Numbers in Range II	Solution	Solve	Hard	-	Dynamic Programming Math
3778. Minimum Distance Excluding One Maximum Weighted Edge	Solution	Solve	Medium	-
3750. Minimum Number of Flips to Reverse Binary String	Solution	Solve	Easy	-	Bit Manipulation Math+2
3828. Final Element After Subarray Deletions	Solution	Solve	Medium	-	Array Brainteaser+2
3826. Minimum Partition Score	Solution	Solve	Hard	-	Array Divide and Conquer+4
3741. Minimum Distance Between Three Equal Elements II	Solution	Solve	Medium	-	Array Hash Table
3829. Design Ride Sharing System	Solution	Solve	Medium	Meta	Data Stream Design+2
3736. Minimum Moves to Equal Array Elements III	Solution	Solve	Easy	Adobe	Array Math
3740. Minimum Distance Between Three Equal Elements I	Solution	Solve	Easy	-	Array Hash Table
3744. Find Kth Character in Expanded String	Solution	Solve	Medium	-	String
3745. Maximize Expression of Three Elements	Solution	Solve	Easy	-	Array Enumeration+2
3748. Count Stable Subarrays	Solution	Solve	Hard	-	Array Binary Search+1
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
3731. Find Missing Elements	Solution	Solve	Easy	Bloomberg+1	Array Hash Table+1
3735. Lexicographically Smallest String After Reverse II	Solution	Solve	Hard	-	Binary Search Hash Function+3
3732. Maximum Product of Three Elements After One Replacement	Solution	Solve	Medium	Meta	Array Greedy+2
3765. Complete Prime Number	Solution	Solve	Medium	-	Enumeration Math+1
3766. Minimum Operations to Make Binary Palindrome	Solution	Solve	Medium	Teradata	Array Binary Search+2
3738. Longest Non-Decreasing Subarray After Replacing at Most One Element	Solution	Solve	Medium	Google	Array Dynamic Programming
3877. Minimum Removals to Achieve Target XOR	Solution	Solve	Medium	-	Array Bit Manipulation+1
3791. Number of Balanced Integers in a Range	Solution	Solve	Hard	-	Dynamic Programming
3746. Minimum String Length After Balanced Removals	Solution	Solve	Medium	-	Counting Stack+1
3767. Maximize Points After Choosing K Tasks	Solution	Solve	Medium	Amazon	Array Greedy+2
3760. Maximum Substrings With Distinct Start	Solution	Solve	Medium	-	Hash Table String
3816. Lexicographically Smallest String After Deleting Duplicate Characters	Solution	Solve	Hard	Paytm	Greedy Hash Table+3
3770. Largest Prime from Consecutive Prime Sum	Solution	Solve	Medium	Google+1	Array Math+1
3723. Maximize Sum of Squares of Digits	Solution	Solve	Medium	-	Greedy Math
3728. Stable Subarrays With Equal Boundary and Interior Sum	Solution	Solve	Medium	Amazon+1	Array Hash Table+1
3711. Maximum Transactions Without Negative Balance	Solution	Solve	Medium	Paytm	Array Greedy+1
3718. Smallest Missing Multiple of K	Solution	Solve	Easy	-	Array Hash Table
3814. Maximum Capacity Within Budget	Solution	Solve	Medium	Amazon+1	Array Binary Search+2
3727. Maximum Alternating Sum of Squares	Solution	Solve	Medium	-	Array Greedy+1