Problems

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

Title	Solution	Practice	Difficulty	Companies	Topics
3752. Lexicographically Smallest Negated Permutation that Sums to Target	Solution	Solve	Medium	Amazon	Array Greedy+3
3739. Count Subarrays With Majority Element II	Solution	Solve	Hard	-	Array Divide and Conquer+4
3737. Count Subarrays With Majority Element I	Solution	Solve	Medium	-	Array Counting+5
3722. Lexicographically Smallest String After Reverse	Solution	Solve	Medium	-	Binary Search Enumeration+1
3786. Total Sum of Interaction Cost in Tree Groups	Solution	Solve	Hard	Amazon	Array Depth-First Search+1
3799. Word Squares II	Solution	Solve	Medium	Oracle	Array Backtracking+3
3706. Maximum Distance Between Unequal Words in Array II	Solution	Solve	Medium	-	Array String
3725. Count Ways to Choose Coprime Integers from Rows	Solution	Solve	Hard	-	Array Combinatorics+4
3712. Sum of Elements With Frequency Divisible by K	Solution	Solve	Easy	-	Array Counting+1
3815. Design Auction System	Solution	Solve	Medium	Google	Design Hash Table+2
3696. Maximum Distance Between Unequal Words in Array I	Solution	Solve	Easy	Walmart	Array String
3850. Count Sequences to K	Solution	Solve	Hard	-	Array Dynamic Programming+3
3777. Minimum Deletions to Make Alternating Substring	Solution	Solve	Hard	-	Segment Tree String
3729. Count Distinct Subarrays Divisible by K in Sorted Array	Solution	Solve	Hard	-	Array Hash Table+1
3840. House Robber V	Solution	Solve	Medium	-	Array Dynamic Programming
3785. Minimum Swaps to Avoid Forbidden Values	Solution	Solve	Hard	Amazon	Array Counting+2
3687. Library Late Fee Calculator	Solution	Solve	Easy	-	Array Simulation
3709. Design Exam Scores Tracker	Solution	Solve	Medium	Meesho	Array Binary Search+2
3701. Compute Alternating Sum	Solution	Solve	Easy	-	Array Simulation
3751. Total Waviness of Numbers in Range I	Solution	Solve	Medium	Google	Dynamic Programming Enumeration+1
3714. Longest Balanced Substring II	Solution	Solve	Medium	Amazon+5	Hash Table Prefix Sum+1
3713. Longest Balanced Substring I	Solution	Solve	Medium	Amazon+3	Counting Enumeration+2
3747. Count Distinct Integers After Removing Zeros	Solution	Solve	Medium	Google	Dynamic Programming Math
3692. Majority Frequency Characters	Solution	Solve	Easy	-	Counting Hash Table+1
3707. Equal Score Substrings	Solution	Solve	Easy	-	Prefix Sum String
3726. Remove Zeros in Decimal Representation	Solution	Solve	Easy	-	Math Simulation
3682. Minimum Index Sum of Common Elements	Solution	Solve	Medium	-	Array Hash Table
3704. Count No-Zero Pairs That Sum to N	Solution	Solve	Hard	-	Dynamic Programming Math
3733. Minimum Time to Complete All Deliveries	Solution	Solve	Medium	Amazon+1	Binary Search Math
3721. Longest Balanced Subarray II	Solution	Solve	Hard	Amazon+1	Array Divide and Conquer+3
3719. Longest Balanced Subarray I	Solution	Solve	Medium	Amazon+3	Array Divide and Conquer+3
3849. Maximum Bitwise XOR After Rearrangement	Solution	Solve	Medium	-	Bit Manipulation Greedy+1
3724. Minimum Operations to Transform Array	Solution	Solve	Medium	-	Array Greedy
3693. Climbing Stairs II	Solution	Solve	Medium	-	Array Dynamic Programming
3697. Compute Decimal Representation	Solution	Solve	Easy	Meta	Array Math
3734. Lexicographically Smallest Palindromic Permutation Greater Than Target	Solution	Solve	Hard	-	Enumeration String+1
3672. Sum of Weighted Modes in Subarrays	Solution	Solve	Medium	-	Array Counting+3
3710. Maximum Partition Factor	Solution	Solve	Hard	Gameskraft	Array Binary Search+4
3702. Longest Subsequence With Non-Zero Bitwise XOR	Solution	Solve	Medium	-	Array Bit Manipulation
3825. Longest Strictly Increasing Subsequence With Non-Zero Bitwise AND	Solution	Solve	Medium	-	Array Binary Search+2
3743. Maximize Cyclic Partition Score	Solution	Solve	Hard	Amazon+1	Array Dynamic Programming
3667. Sort Array By Absolute Value	Solution	Solve	Easy	Cognizant	Array Math+2
3686. Number of Stable Subsequences	Solution	Solve	Hard	Google	Array Dynamic Programming
3857. Minimum Cost to Split into Ones	Solution	Solve	Medium	-	Dynamic Programming Math
3677. Count Binary Palindromic Numbers	Solution	Solve	Hard	-	Bit Manipulation Math
3762. Minimum Operations to Equalize Subarrays	Solution	Solve	Hard	-	Array Binary Search+2
3694. Distinct Points Reachable After Substring Removal	Solution	Solve	Medium	-	Hash Table Prefix Sum+2
3720. Lexicographically Smallest Permutation Greater Than Target	Solution	Solve	Medium	Amazon+1	Counting Enumeration+3
3703. Remove K-Balanced Substrings	Solution	Solve	Medium	Bloomberg+1	Simulation Stack+1
3776. Minimum Moves to Balance Circular Array	Solution	Solve	Medium	Bloomberg	Array Greedy+1