Solutions & Explanations

Browse 4,029+ detailed solutions with multiple approaches, code in Python, Java, C++ and more.

4,029 Solutions961 Easy2102 Medium966 Hard

Title	Difficulty	Acceptance	Topics	Solution
3858. Minimum Bitwise OR From Grid	Medium	27.5%	Array Bit Manipulation+2	Read
3780. Maximum Sum of Three Numbers Divisible by Three	Medium	47.7%	Array Greedy+2	Read
3775. Reverse Words With Same Vowel Count	Medium	66.6%	Simulation String+1	Read
3800. Minimum Cost to Make Two Binary Strings Equal	Medium	38.6%	Greedy String	Read
3773. Maximum Number of Equal Length Runs	Medium	82.8%	Counting Hash Table+1	Read
3795. Minimum Subarray Length With Distinct Sum At Least K	Medium	31.7%	Array Hash Table+1	Read
3758. Convert Number Words to Digits	Medium	67.7%	String Trie	Read
3789. Minimum Cost to Acquire Required Items	Medium	34.8%	Greedy Math	Read
3771. Total Score of Dungeon Runs	Medium	30.6%	Array Binary Search+1	Read
3811. Number of Alternating XOR Partitions	Medium	27.3%	Array Bit Manipulation+2	Read
3759. Count Elements With at Least K Greater Values	Medium	31.9%	Array Binary Search+3	Read
3761. Minimum Absolute Distance Between Mirror Pairs	Medium	59.1%	Array Hash Table+1	Read
3784. Minimum Deletion Cost to Make All Characters Equal	Medium	55.0%	Array Enumeration+2	Read
3839. Number of Prefix Connected Groups	Medium	60.5%	Array Counting+2	Read
3756. Concatenate Non-Zero Digits and Multiply by Sum II	Medium	42.7%	Math Prefix Sum+1	Read
3781. Maximum Score After Binary Swaps	Medium	35.0%	Array Greedy+2	Read
3804. Number of Centered Subarrays	Medium	67.5%	Array Enumeration+1	Read
3778. Minimum Distance Excluding One Maximum Weighted Edge	Medium	46.8%		Read
3828. Final Element After Subarray Deletions	Medium	40.9%	Array Brainteaser+2	Read
3741. Minimum Distance Between Three Equal Elements II	Medium	74.3%	Array Hash Table	Read
3829. Design Ride Sharing System	Medium	62.6%	Data Stream Design+2	Read
3744. Find Kth Character in Expanded String	Medium	55.8%	String	Read
3730. Maximum Calories Burnt from Jumps	Medium	72.2%	Array Greedy+2	Read
3717. Minimum Operations to Make the Array Beautiful	Medium	37.5%	Array Dynamic Programming	Read
3732. Maximum Product of Three Elements After One Replacement	Medium	47.8%	Array Greedy+2	Read
3765. Complete Prime Number	Medium	36.9%	Enumeration Math+1	Read
3766. Minimum Operations to Make Binary Palindrome	Medium	51.2%	Array Binary Search+2	Read
3738. Longest Non-Decreasing Subarray After Replacing at Most One Element	Medium	22.9%	Array Dynamic Programming	Read
3877. Minimum Removals to Achieve Target XOR	Medium	41.9%	Array Bit Manipulation+1	Read
3746. Minimum String Length After Balanced Removals	Medium	77.6%	Counting Stack+1	Read
3767. Maximize Points After Choosing K Tasks	Medium	59.1%	Array Greedy+2	Read
3760. Maximum Substrings With Distinct Start	Medium	91.4%	Hash Table String	Read
3770. Largest Prime from Consecutive Prime Sum	Medium	39.0%	Array Math+1	Read
3723. Maximize Sum of Squares of Digits	Medium	57.9%	Greedy Math	Read
3728. Stable Subarrays With Equal Boundary and Interior Sum	Medium	26.6%	Array Hash Table+1	Read
3711. Maximum Transactions Without Negative Balance	Medium	46.1%	Array Greedy+1	Read
3814. Maximum Capacity Within Budget	Medium	20.7%	Array Binary Search+2	Read
3727. Maximum Alternating Sum of Squares	Medium	61.3%	Array Greedy+1	Read
3752. Lexicographically Smallest Negated Permutation that Sums to Target	Medium	31.5%	Array Greedy+3	Read
3737. Count Subarrays With Majority Element I	Medium	75.7%	Array Counting+5	Read
3722. Lexicographically Smallest String After Reverse	Medium	53.9%	Binary Search Enumeration+1	Read
3799. Word Squares II	Medium	53.8%	Array Backtracking+3	Read
3706. Maximum Distance Between Unequal Words in Array II	Medium	71.5%	Array String	Read
3815. Design Auction System	Medium	41.9%	Design Hash Table+2	Read
3840. House Robber V	Medium	53.3%	Array Dynamic Programming	Read
3709. Design Exam Scores Tracker	Medium	44.0%	Array Binary Search+2	Read
3751. Total Waviness of Numbers in Range I	Medium	86.9%	Dynamic Programming Enumeration+1	Read
3714. Longest Balanced Substring II	Medium	42.0%	Hash Table Prefix Sum+1	Read
3713. Longest Balanced Substring I	Medium	69.7%	Counting Enumeration+2	Read
3747. Count Distinct Integers After Removing Zeros	Medium	23.1%	Dynamic Programming Math	Read

#3858Medium

Minimum Bitwise OR From Grid

ArrayBit ManipulationGreedy+1

Acceptance: 27.5%

#3780Medium

Maximum Sum of Three Numbers Divisible by Three

ArrayGreedyHeap (Priority Queue)+1

Acceptance: 47.7%

#3775Medium

Reverse Words With Same Vowel Count

SimulationStringTwo Pointers

Acceptance: 66.6%

#3800Medium

Minimum Cost to Make Two Binary Strings Equal

GreedyString

Acceptance: 38.6%

#3773Medium

Maximum Number of Equal Length Runs

CountingHash TableString

Acceptance: 82.8%

#3795Medium

Minimum Subarray Length With Distinct Sum At Least K

ArrayHash TableSliding Window

Acceptance: 31.7%

#3758Medium

Convert Number Words to Digits

StringTrie

Acceptance: 67.7%

#3789Medium

Minimum Cost to Acquire Required Items

GreedyMath

Acceptance: 34.8%

#3771Medium

Total Score of Dungeon Runs

ArrayBinary SearchPrefix Sum

Acceptance: 30.6%

#3811Medium

Number of Alternating XOR Partitions

ArrayBit ManipulationDynamic Programming+1

Acceptance: 27.3%

#3759Medium

Count Elements With at Least K Greater Values

ArrayBinary SearchDivide and Conquer+2

Acceptance: 31.9%

#3761Medium

Minimum Absolute Distance Between Mirror Pairs

ArrayHash TableMath

Acceptance: 59.1%

#3784Medium

Minimum Deletion Cost to Make All Characters Equal

ArrayEnumerationHash Table+1

Acceptance: 55.0%

#3839Medium

Number of Prefix Connected Groups

ArrayCountingHash Table+1

Acceptance: 60.5%

#3756Medium

Concatenate Non-Zero Digits and Multiply by Sum II

MathPrefix SumString

Acceptance: 42.7%

#3781Medium

Maximum Score After Binary Swaps

ArrayGreedyHeap (Priority Queue)+1

Acceptance: 35.0%

#3804Medium

Number of Centered Subarrays

ArrayEnumerationHash Table

Acceptance: 67.5%

#3778Medium

Minimum Distance Excluding One Maximum Weighted Edge

Acceptance: 46.8%

#3828Medium

Final Element After Subarray Deletions

ArrayBrainteaserGame Theory+1

Acceptance: 40.9%

#3741Medium

Minimum Distance Between Three Equal Elements II

ArrayHash Table

Acceptance: 74.3%

#3829Medium

Design Ride Sharing System

Data StreamDesignHash Table+1

Acceptance: 62.6%

#3744Medium

Find Kth Character in Expanded String

String

Acceptance: 55.8%

#3730Medium

Maximum Calories Burnt from Jumps

ArrayGreedySorting+1

Acceptance: 72.2%

#3717Medium

Minimum Operations to Make the Array Beautiful

ArrayDynamic Programming

Acceptance: 37.5%

#3732Medium

Maximum Product of Three Elements After One Replacement

ArrayGreedyMath+1

Acceptance: 47.8%

#3765Medium

Complete Prime Number

EnumerationMathNumber Theory

Acceptance: 36.9%

#3766Medium

Minimum Operations to Make Binary Palindrome

ArrayBinary SearchBit Manipulation+1

Acceptance: 51.2%

#3738Medium

Longest Non-Decreasing Subarray After Replacing at Most One Element

ArrayDynamic Programming

Acceptance: 22.9%

#3877Medium

Minimum Removals to Achieve Target XOR

ArrayBit ManipulationDynamic Programming

Acceptance: 41.9%

#3746Medium

Minimum String Length After Balanced Removals

CountingStackString

Acceptance: 77.6%

#3767Medium

Maximize Points After Choosing K Tasks

ArrayGreedyHeap (Priority Queue)+1

Acceptance: 59.1%

#3760Medium

Maximum Substrings With Distinct Start

Hash TableString

Acceptance: 91.4%

#3770Medium

Largest Prime from Consecutive Prime Sum

ArrayMathNumber Theory

Acceptance: 39.0%

#3723Medium

Maximize Sum of Squares of Digits

GreedyMath

Acceptance: 57.9%

#3728Medium

Stable Subarrays With Equal Boundary and Interior Sum

ArrayHash TablePrefix Sum

Acceptance: 26.6%

#3711Medium

Maximum Transactions Without Negative Balance

ArrayGreedyHeap (Priority Queue)

Acceptance: 46.1%

#3814Medium

Maximum Capacity Within Budget

ArrayBinary SearchSorting+1

Acceptance: 20.7%

#3727Medium

Maximum Alternating Sum of Squares

ArrayGreedySorting

Acceptance: 61.3%

#3752Medium

Lexicographically Smallest Negated Permutation that Sums to Target

ArrayGreedyMath+2

Acceptance: 31.5%

#3737Medium

Count Subarrays With Majority Element I

ArrayCountingDivide and Conquer+4

Acceptance: 75.7%

#3722Medium

Lexicographically Smallest String After Reverse

Binary SearchEnumerationTwo Pointers

Acceptance: 53.9%

#3799Medium

Word Squares II

ArrayBacktrackingEnumeration+2

Acceptance: 53.8%

#3706Medium

Maximum Distance Between Unequal Words in Array II

ArrayString

Acceptance: 71.5%

#3815Medium

Design Auction System

DesignHash TableHeap (Priority Queue)+1

Acceptance: 41.9%

#3840Medium

House Robber V

ArrayDynamic Programming

Acceptance: 53.3%

#3709Medium

Design Exam Scores Tracker

ArrayBinary SearchDesign+1

Acceptance: 44.0%

#3751Medium

Total Waviness of Numbers in Range I

Dynamic ProgrammingEnumerationMath

Acceptance: 86.9%

#3714Medium

Longest Balanced Substring II

Hash TablePrefix SumString

Acceptance: 42.0%

#3713Medium

Longest Balanced Substring I

CountingEnumerationHash Table+1

Acceptance: 69.7%

#3747Medium

Count Distinct Integers After Removing Zeros

Dynamic ProgrammingMath

Acceptance: 23.1%

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