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
1681. Minimum Incompatibility	Hard	41.8%	Array Bit Manipulation+2	Read
1687. Delivering Boxes from Storage to Ports	Hard	40.1%	Array Dynamic Programming+5	Read
1691. Maximum Height by Stacking Cuboids	Hard	62.4%	Array Dynamic Programming+1	Read
1692. Count Ways to Distribute Candies	Hard	62.7%	Dynamic Programming	Read
1697. Checking Existence of Edge Length Limited Paths	Hard	63.2%	Array Graph+3	Read
1703. Minimum Adjacent Swaps for K Consecutive Ones	Hard	42.8%	Array Greedy+2	Read
1707. Maximum XOR With an Element From Array	Hard	59.0%	Array Bit Manipulation+1	Read
1713. Minimum Operations to Make a Subsequence	Hard	49.7%	Array Binary Search+2	Read
1714. Sum Of Special Evenly-Spaced Elements In Array	Hard	49.9%	Array Dynamic Programming	Read
1719. Number Of Ways To Reconstruct A Tree	Hard	46.3%	Graph Tree	Read
1723. Find Minimum Time to Finish All Jobs	Hard	46.1%	Array Backtracking+3	Read
1724. Checking Existence of Edge Length Limited Paths II	Hard	51.2%	Graph Minimum Spanning Tree+1	Read
1728. Cat and Mouse II	Hard	40.4%	Array Dynamic Programming+6	Read
1735. Count Ways to Make Array With Product	Hard	55.8%	Array Combinatorics+3	Read
1739. Building Boxes	Hard	52.5%	Binary Search Greedy+1	Read
1745. Palindrome Partitioning IV	Hard	45.2%	Dynamic Programming String	Read
1751. Maximum Number of Events That Can Be Attended II	Hard	63.6%	Array Binary Search+2	Read
1755. Closest Subsequence Sum	Hard	44.7%	Array Bit Manipulation+3	Read
1761. Minimum Degree of a Connected Trio in a Graph	Hard	44.9%	Graph	Read
1766. Tree of Coprimes	Hard	45.1%	Array Depth-First Search+3	Read
1767. Find the Subtasks That Did Not Execute	Hard	78.0%	Database	Read
1770. Maximum Score from Performing Multiplication Operations	Hard	43.2%	Array Dynamic Programming	Read
1771. Maximize Palindrome Length From Subsequences	Hard	38.4%	Dynamic Programming String	Read
1776. Car Fleet II	Hard	58.4%	Array Heap (Priority Queue)+3	Read
1782. Count Pairs Of Nodes	Hard	43.3%	Array Binary Search+3	Read
1787. Make the XOR of All Segments Equal to Zero	Hard	41.1%	Array Bit Manipulation+1	Read
1788. Maximize the Beauty of the Garden	Hard	64.7%	Array Greedy+2	Read
1793. Maximum Score of a Good Subarray	Hard	64.3%	Array Binary Search+3	Read
1799. Maximize Score After N Operations	Hard	57.8%	Array Backtracking+5	Read
1803. Count Pairs With XOR in a Range	Hard	46.3%	Array Bit Manipulation+1	Read
1808. Maximize Number of Nice Divisors	Hard	36.7%	Math Number Theory+1	Read
1815. Maximum Number of Groups Getting Fresh Donuts	Hard	41.7%	Array Bit Manipulation+3	Read
1819. Number of Different Subsequences GCDs	Hard	47.2%	Array Counting+2	Read
1825. Finding MK Average	Hard	38.7%	Data Stream Design+3	Read
1830. Minimum Number of Operations to Make String Sorted	Hard	50.4%	Combinatorics Math+1	Read
1835. Find XOR Sum of All Pairs Bitwise AND	Hard	62.6%	Array Bit Manipulation+1	Read
1840. Maximum Building Height	Hard	67.1%	Array Math+1	Read
1842. Next Palindrome Using Same Digits	Hard	54.2%	String Two Pointers	Read
1847. Closest Room	Hard	41.9%	Array Binary Search+2	Read
1851. Minimum Interval to Include Each Query	Hard	54.8%	Array Binary Search+3	Read
1857. Largest Color Value in a Directed Graph	Hard	57.3%	Counting Dynamic Programming+4	Read
1862. Sum of Floored Pairs	Hard	31.4%	Array Binary Search+2	Read
1866. Number of Ways to Rearrange Sticks With K Sticks Visible	Hard	62.7%	Combinatorics Dynamic Programming+1	Read
1872. Stone Game VIII	Hard	75.2%	Array Dynamic Programming+3	Read
1879. Minimum XOR Sum of Two Arrays	Hard	52.0%	Array Bit Manipulation+2	Read
1883. Minimum Skips to Arrive at Meeting On Time	Hard	38.9%	Array Dynamic Programming	Read
1889. Minimum Space Wasted From Packaging	Hard	33.6%	Array Binary Search+2	Read
1892. Page Recommendations II	Hard	44.4%	Database	Read
1896. Minimum Cost to Change the Final Value of Expression	Hard	50.0%	Dynamic Programming Math+2	Read
1900. The Earliest and Latest Rounds Where Players Compete	Hard	72.1%	Dynamic Programming Memoization	Read

#1681Hard

Minimum Incompatibility

ArrayBit ManipulationBitmask+1

Acceptance: 41.8%

#1687Hard

Delivering Boxes from Storage to Ports

ArrayDynamic ProgrammingHeap (Priority Queue)+4

Acceptance: 40.1%

#1691Hard

Maximum Height by Stacking Cuboids

ArrayDynamic ProgrammingSorting

Acceptance: 62.4%

#1692Hard

Count Ways to Distribute Candies

Dynamic Programming

Acceptance: 62.7%

#1697Hard

Checking Existence of Edge Length Limited Paths

ArrayGraphSorting+2

Acceptance: 63.2%

#1703Hard

Minimum Adjacent Swaps for K Consecutive Ones

ArrayGreedyPrefix Sum+1

Acceptance: 42.8%

#1707Hard

Maximum XOR With an Element From Array

ArrayBit ManipulationTrie

Acceptance: 59.0%

#1713Hard

Minimum Operations to Make a Subsequence

ArrayBinary SearchGreedy+1

Acceptance: 49.7%

#1714Hard

Sum Of Special Evenly-Spaced Elements In Array

ArrayDynamic Programming

Acceptance: 49.9%

#1719Hard

Number Of Ways To Reconstruct A Tree

GraphTree

Acceptance: 46.3%

#1723Hard

Find Minimum Time to Finish All Jobs

ArrayBacktrackingBit Manipulation+2

Acceptance: 46.1%

#1724Hard

Checking Existence of Edge Length Limited Paths II

GraphMinimum Spanning TreeUnion Find

Acceptance: 51.2%

#1728Hard

Cat and Mouse II

ArrayDynamic ProgrammingGame Theory+5

Acceptance: 40.4%

#1735Hard

Count Ways to Make Array With Product

ArrayCombinatoricsDynamic Programming+2

Acceptance: 55.8%

#1739Hard

Building Boxes

Binary SearchGreedyMath

Acceptance: 52.5%

#1745Hard

Palindrome Partitioning IV

Dynamic ProgrammingString

Acceptance: 45.2%

#1751Hard

Maximum Number of Events That Can Be Attended II

ArrayBinary SearchDynamic Programming+1

Acceptance: 63.6%

#1755Hard

Closest Subsequence Sum

ArrayBit ManipulationBitmask+2

Acceptance: 44.7%

#1761Hard

Minimum Degree of a Connected Trio in a Graph

Graph

Acceptance: 44.9%

#1766Hard

Tree of Coprimes

ArrayDepth-First SearchMath+2

Acceptance: 45.1%

#1767Hard

Find the Subtasks That Did Not Execute

Database

Acceptance: 78.0%

#1770Hard

Maximum Score from Performing Multiplication Operations

ArrayDynamic Programming

Acceptance: 43.2%

#1771Hard

Maximize Palindrome Length From Subsequences

Dynamic ProgrammingString

Acceptance: 38.4%

#1776Hard

Car Fleet II

ArrayHeap (Priority Queue)Math+2

Acceptance: 58.4%

#1782Hard

Count Pairs Of Nodes

ArrayBinary SearchGraph+2

Acceptance: 43.3%

#1787Hard

Make the XOR of All Segments Equal to Zero

ArrayBit ManipulationDynamic Programming

Acceptance: 41.1%

#1788Hard

Maximize the Beauty of the Garden

ArrayGreedyHash Table+1

Acceptance: 64.7%

#1793Hard

Maximum Score of a Good Subarray

ArrayBinary SearchMonotonic Stack+2

Acceptance: 64.3%

#1799Hard

Maximize Score After N Operations

ArrayBacktrackingBit Manipulation+4

Acceptance: 57.8%

#1803Hard

Count Pairs With XOR in a Range

ArrayBit ManipulationTrie

Acceptance: 46.3%

#1808Hard

Maximize Number of Nice Divisors

MathNumber TheoryRecursion

Acceptance: 36.7%

#1815Hard

Maximum Number of Groups Getting Fresh Donuts

ArrayBit ManipulationBitmask+2

Acceptance: 41.7%

#1819Hard

Number of Different Subsequences GCDs

ArrayCountingMath+1

Acceptance: 47.2%

#1825Hard

Finding MK Average

Data StreamDesignHeap (Priority Queue)+2

Acceptance: 38.7%

#1830Hard

Minimum Number of Operations to Make String Sorted

CombinatoricsMathString

Acceptance: 50.4%

#1835Hard

Find XOR Sum of All Pairs Bitwise AND

ArrayBit ManipulationMath

Acceptance: 62.6%

#1840Hard

Maximum Building Height

ArrayMathSorting

Acceptance: 67.1%

#1842Hard

Next Palindrome Using Same Digits

StringTwo Pointers

Acceptance: 54.2%

#1847Hard

Closest Room

ArrayBinary SearchOrdered Set+1

Acceptance: 41.9%

#1851Hard

Minimum Interval to Include Each Query

ArrayBinary SearchHeap (Priority Queue)+2

Acceptance: 54.8%

#1857Hard

Largest Color Value in a Directed Graph

CountingDynamic ProgrammingGraph+3

Acceptance: 57.3%

#1862Hard

Sum of Floored Pairs

ArrayBinary SearchMath+1

Acceptance: 31.4%

#1866Hard

Number of Ways to Rearrange Sticks With K Sticks Visible

CombinatoricsDynamic ProgrammingMath

Acceptance: 62.7%

#1872Hard

Stone Game VIII

ArrayDynamic ProgrammingGame Theory+2

Acceptance: 75.2%

#1879Hard

Minimum XOR Sum of Two Arrays

ArrayBit ManipulationBitmask+1

Acceptance: 52.0%

#1883Hard

Minimum Skips to Arrive at Meeting On Time

ArrayDynamic Programming

Acceptance: 38.9%

#1889Hard

Minimum Space Wasted From Packaging

ArrayBinary SearchPrefix Sum+1

Acceptance: 33.6%

#1892Hard

Page Recommendations II

Database

Acceptance: 44.4%

#1896Hard

Minimum Cost to Change the Final Value of Expression

Dynamic ProgrammingMathStack+1

Acceptance: 50.0%

#1900Hard

The Earliest and Latest Rounds Where Players Compete

Dynamic ProgrammingMemoization

Acceptance: 72.1%

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