Solutions & Explanations

Browse 4,030+ detailed solutions with multiple approaches, code in Python, Java, C++ and more.

4,030 Solutions961 Easy2102 Medium967 Hard

Title	Difficulty	Acceptance	Topics	Solution
1751. Maximum Number of Events That Can Be Attended II	Hard	63.6%	Array Binary Search+2	Read
1752. Check if Array Is Sorted and Rotated	Easy	57.3%	Array	Read
1753. Maximum Score From Removing Stones	Medium	68.6%	Greedy Heap (Priority Queue)+1	Read
1754. Largest Merge Of Two Strings	Medium	54.2%	Greedy String+1	Read
1755. Closest Subsequence Sum	Hard	44.7%	Array Bit Manipulation+3	Read
1756. Design Most Recently Used Queue	Medium	78.0%	Array Binary Indexed Tree+4	Read
1757. Recyclable and Low Fat Products	Easy	89.3%	Database	Read
1758. Minimum Changes To Make Alternating Binary String	Easy	67.8%	String	Read
1759. Count Number of Homogenous Substrings	Medium	57.6%	Math String	Read
1760. Minimum Limit of Balls in a Bag	Medium	65.9%	Array Binary Search	Read
1761. Minimum Degree of a Connected Trio in a Graph	Hard	44.9%	Graph	Read
1762. Buildings With an Ocean View	Medium	80.9%	Array Monotonic Stack+1	Read
1763. Longest Nice Substring	Easy	64.4%	Bit Manipulation Divide and Conquer+3	Read
1764. Form Array by Concatenating Subarrays of Another Array	Medium	54.7%	Array Greedy+2	Read
1765. Map of Highest Peak	Medium	76.3%	Array Breadth-First Search+1	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
1768. Merge Strings Alternately	Easy	82.1%	String Two Pointers	Read
1769. Minimum Number of Operations to Move All Balls to Each Box	Medium	90.1%	Array Prefix Sum+1	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
1772. Sort Features by Popularity	Medium	66.4%	Array Hash Table+2	Read
1773. Count Items Matching a Rule	Easy	85.3%	Array String	Read
1774. Closest Dessert Cost	Medium	49.0%	Array Backtracking+1	Read
1775. Equal Sum Arrays With Minimum Number of Operations	Medium	54.6%	Array Counting+2	Read
1776. Car Fleet II	Hard	58.4%	Array Heap (Priority Queue)+3	Read
1777. Product's Price for Each Store	Easy	82.3%	Database	Read
1778. Shortest Path in a Hidden Grid	Medium	44.5%	Breadth-First Search Depth-First Search+2	Read
1779. Find Nearest Point That Has the Same X or Y Coordinate	Easy	69.9%	Array	Read
1780. Check if Number is a Sum of Powers of Three	Medium	79.4%	Math	Read
1781. Sum of Beauty of All Substrings	Medium	74.9%	Counting Hash Table+1	Read
1782. Count Pairs Of Nodes	Hard	43.3%	Array Binary Search+3	Read
1783. Grand Slam Titles	Medium	83.2%	Database	Read
1784. Check if Binary String Has at Most One Segment of Ones	Easy	49.0%	String	Read
1785. Minimum Elements to Add to Form a Given Sum	Medium	45.0%	Array Greedy	Read
1786. Number of Restricted Paths From First to Last Node	Medium	41.6%	Dynamic Programming Graph+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
1789. Primary Department for Each Employee	Easy	68.1%	Database	Read
1790. Check if One String Swap Can Make Strings Equal	Easy	49.5%	Counting Hash Table+1	Read
1791. Find Center of Star Graph	Easy	86.6%	Graph	Read
1792. Maximum Average Pass Ratio	Medium	74.1%	Array Greedy+1	Read
1793. Maximum Score of a Good Subarray	Hard	64.3%	Array Binary Search+3	Read
1794. Count Pairs of Equal Substrings With Minimum Difference	Medium	62.7%	Greedy Hash Table+1	Read
1795. Rearrange Products Table	Easy	85.4%	Database	Read
1796. Second Largest Digit in a String	Easy	55.2%	Hash Table String	Read
1797. Design Authentication Manager	Medium	58.5%	Design Doubly-Linked List+2	Read
1798. Maximum Number of Consecutive Values You Can Make	Medium	64.4%	Array Greedy+1	Read
1799. Maximize Score After N Operations	Hard	57.8%	Array Backtracking+5	Read
1800. Maximum Ascending Subarray Sum	Easy	66.3%	Array	Read

#1751Hard

Maximum Number of Events That Can Be Attended II

ArrayBinary SearchDynamic Programming+1

Acceptance: 63.6%

#1752Easy

Check if Array Is Sorted and Rotated

Array

Acceptance: 57.3%

#1753Medium

Maximum Score From Removing Stones

GreedyHeap (Priority Queue)Math

Acceptance: 68.6%

#1754Medium

Largest Merge Of Two Strings

GreedyStringTwo Pointers

Acceptance: 54.2%

#1755Hard

Closest Subsequence Sum

ArrayBit ManipulationBitmask+2

Acceptance: 44.7%

#1756Medium

Design Most Recently Used Queue

ArrayBinary Indexed TreeDesign+3

Acceptance: 78.0%

#1757Easy

Recyclable and Low Fat Products

Database

Acceptance: 89.3%

#1758Easy

Minimum Changes To Make Alternating Binary String

String

Acceptance: 67.8%

#1759Medium

Count Number of Homogenous Substrings

MathString

Acceptance: 57.6%

#1760Medium

Minimum Limit of Balls in a Bag

ArrayBinary Search

Acceptance: 65.9%

#1761Hard

Minimum Degree of a Connected Trio in a Graph

Graph

Acceptance: 44.9%

#1762Medium

Buildings With an Ocean View

ArrayMonotonic StackStack

Acceptance: 80.9%

#1763Easy

Longest Nice Substring

Bit ManipulationDivide and ConquerHash Table+2

Acceptance: 64.4%

#1764Medium

Form Array by Concatenating Subarrays of Another Array

ArrayGreedyString Matching+1

Acceptance: 54.7%

#1765Medium

Map of Highest Peak

ArrayBreadth-First SearchMatrix

Acceptance: 76.3%

#1766Hard

Tree of Coprimes

ArrayDepth-First SearchMath+2

Acceptance: 45.1%

#1767Hard

Find the Subtasks That Did Not Execute

Database

Acceptance: 78.0%

#1768Easy

Merge Strings Alternately

StringTwo Pointers

Acceptance: 82.1%

#1769Medium

Minimum Number of Operations to Move All Balls to Each Box

ArrayPrefix SumString

Acceptance: 90.1%

#1770Hard

Maximum Score from Performing Multiplication Operations

ArrayDynamic Programming

Acceptance: 43.2%

#1771Hard

Maximize Palindrome Length From Subsequences

Dynamic ProgrammingString

Acceptance: 38.4%

#1772Medium

Sort Features by Popularity

ArrayHash TableSorting+1

Acceptance: 66.4%

#1773Easy

Count Items Matching a Rule

ArrayString

Acceptance: 85.3%

#1774Medium

Closest Dessert Cost

ArrayBacktrackingDynamic Programming

Acceptance: 49.0%

#1775Medium

Equal Sum Arrays With Minimum Number of Operations

ArrayCountingGreedy+1

Acceptance: 54.6%

#1776Hard

Car Fleet II

ArrayHeap (Priority Queue)Math+2

Acceptance: 58.4%

#1777Easy

Product's Price for Each Store

Database

Acceptance: 82.3%

#1778Medium

Shortest Path in a Hidden Grid

Breadth-First SearchDepth-First SearchGraph+1

Acceptance: 44.5%

#1779Easy

Find Nearest Point That Has the Same X or Y Coordinate

Array

Acceptance: 69.9%

#1780Medium

Check if Number is a Sum of Powers of Three

Math

Acceptance: 79.4%

#1781Medium

Sum of Beauty of All Substrings

CountingHash TableString

Acceptance: 74.9%

#1782Hard

Count Pairs Of Nodes

ArrayBinary SearchGraph+2

Acceptance: 43.3%

#1783Medium

Grand Slam Titles

Database

Acceptance: 83.2%

#1784Easy

Check if Binary String Has at Most One Segment of Ones

String

Acceptance: 49.0%

#1785Medium

Minimum Elements to Add to Form a Given Sum

ArrayGreedy

Acceptance: 45.0%

#1786Medium

Number of Restricted Paths From First to Last Node

Dynamic ProgrammingGraphHeap (Priority Queue)+2

Acceptance: 41.6%

#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%

#1789Easy

Primary Department for Each Employee

Database

Acceptance: 68.1%

#1790Easy

Check if One String Swap Can Make Strings Equal

CountingHash TableString

Acceptance: 49.5%

#1791Easy

Find Center of Star Graph

Graph

Acceptance: 86.6%

#1792Medium

Maximum Average Pass Ratio

ArrayGreedyHeap (Priority Queue)

Acceptance: 74.1%

#1793Hard

Maximum Score of a Good Subarray

ArrayBinary SearchMonotonic Stack+2

Acceptance: 64.3%

#1794Medium

Count Pairs of Equal Substrings With Minimum Difference

GreedyHash TableString

Acceptance: 62.7%

#1795Easy

Rearrange Products Table

Database

Acceptance: 85.4%

#1796Easy

Second Largest Digit in a String

Hash TableString

Acceptance: 55.2%

#1797Medium

Design Authentication Manager

DesignDoubly-Linked ListHash Table+1

Acceptance: 58.5%

#1798Medium

Maximum Number of Consecutive Values You Can Make

ArrayGreedySorting

Acceptance: 64.4%

#1799Hard

Maximize Score After N Operations

ArrayBacktrackingBit Manipulation+4

Acceptance: 57.8%

#1800Easy

Maximum Ascending Subarray Sum

Array

Acceptance: 66.3%

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