Problems

4,039+ problems · 963 Easy · 2107 Medium · 969 Hard

Title	Solution	Practice	Difficulty	Companies	Topics
3838. Weighted Word Mapping	Solution	Solve	Easy	Bloomberg+1	Array Simulation+1
3833. Count Dominant Indices	Solution	Solve	Easy	-	Array Enumeration
3834. Merge Adjacent Equal Elements	Solution	Solve	Medium	-	Array Simulation+1
3842. Toggle Light Bulbs	Solution	Solve	Easy	Juspay	Array Hash Table+2
3835. Count Subarrays With Cost Less Than or Equal to K	Solution	Solve	Medium	-	Array Monotonic Queue+1
3831. Median of a Binary Search Tree Level	Solution	Solve	Medium	-	Binary Search Tree Binary Tree+3
3841. Palindromic Path Queries in a Tree	Solution	Solve	Hard	-	Array Divide and Conquer+3
3817. Good Indices in a Digit String	Solution	Solve	Medium	-	Math String
3845. Maximum Subarray XOR with Bounded Range	Solution	Solve	Hard	-	Array Bit Manipulation+5
3836. Maximum Score Using Exactly K Pairs	Solution	Solve	Hard	-	Array Dynamic Programming
3822. Design Order Management System	Solution	Solve	Medium	Optiver	Design Hash Table
3823. Reverse Letters Then Special Characters in a String	Solution	Solve	Easy	-	Simulation String+1
3818. Minimum Prefix Removal to Make Array Strictly Increasing	Solution	Solve	Medium	Jpmorgan	Array
3830. Longest Alternating Subarray After Removing At Most One Element	Solution	Solve	Hard	-	Array Dynamic Programming+1
3807. Minimum Cost to Repair Edges to Traverse a Graph	Solution	Solve	Medium	-	Binary Search Breadth-First Search+1
3827. Count Monobit Integers	Solution	Solve	Easy	Zoho	Bit Manipulation Enumeration
3864. Minimum Cost to Partition a Binary String	Solution	Solve	Hard	Amazon	Divide and Conquer Prefix Sum+1
3810. Minimum Operations to Reach Target Array	Solution	Solve	Medium	-	Array Greedy+1
3821. Find Nth Smallest Integer With K One Bits	Solution	Solve	Hard	Google	Bit Manipulation Combinatorics+1
3809. Best Reachable Tower	Solution	Solve	Medium	-	Array
3803. Count Residue Prefixes	Solution	Solve	Easy	Google+1	Hash Table String
3805. Count Caesar Cipher Pairs	Solution	Solve	Medium	Google	Array Counting+3
3812. Minimum Edge Toggles on a Tree	Solution	Solve	Hard	-	Depth-First Search Graph+3
3820. Pythagorean Distance Nodes in a Tree	Solution	Solve	Medium	PayPal	Breadth-First Search Tree
3798. Largest Even Number	Solution	Solve	Easy	-	String
3813. Vowel-Consonant Score	Solution	Solve	Easy	-	Simulation String
3794. Reverse String Prefix	Solution	Solve	Easy	Amazon	String Two Pointers
3824. Minimum K to Reduce Array Within Limit	Solution	Solve	Medium	Google	Array Binary Search
3790. Smallest All-Ones Multiple	Solution	Solve	Medium	-	Hash Table Math
3788. Maximum Score of a Split	Solution	Solve	Medium	-	Array Prefix Sum
3792. Sum of Increasing Product Blocks	Solution	Solve	Medium	-	Math Simulation
3819. Rotate Non Negative Elements	Solution	Solve	Medium	Accolite	Array Simulation
3846. Total Distance to Type a String Using One Finger	Solution	Solve	Medium	-	Hash Table String
3783. Mirror Distance of an Integer	Solution	Solve	Easy	Bloomberg+1	Math
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
3782. Last Remaining Integer After Alternating Deletion Operations	Solution	Solve	Hard	-	Math Recursion
3779. Minimum Number of Operations to Have Distinct Elements	Solution	Solve	Medium	Accenture	Array Hash Table
3858. Minimum Bitwise OR From Grid	Solution	Solve	Medium	Google	Array Bit Manipulation+2
3780. Maximum Sum of Three Numbers Divisible by Three	Solution	Solve	Medium	Amazon	Array Greedy+2
3869. Count Fancy Numbers in a Range	Solution	Solve	Hard	-	Dynamic Programming Math
3774. Absolute Difference Between Maximum and Minimum K Elements	Solution	Solve	Easy	-	Array Sorting
3775. Reverse Words With Same Vowel Count	Solution	Solve	Medium	-	Simulation String+1
3800. Minimum Cost to Make Two Binary Strings Equal	Solution	Solve	Medium	-	Greedy String
3773. Maximum Number of Equal Length Runs	Solution	Solve	Medium	-	Counting Hash Table+1
3806. Maximum Bitwise AND After Increment Operations	Solution	Solve	Hard	Amazon	Array Bit Manipulation+2
3797. Count Routes to Climb a Rectangular Grid	Solution	Solve	Hard	Microsoft	Array Dynamic Programming+2
3795. Minimum Subarray Length With Distinct Sum At Least K	Solution	Solve	Medium	Amazon	Array Hash Table+1
3772. Maximum Subgraph Score in a Tree	Solution	Solve	Hard	Microsoft	Array Depth-First Search+2
3769. Sort Integers by Binary Reflection	Solution	Solve	Easy	-	Array Sorting