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
2433. Find The Original Array of Prefix Xor	Medium	88.0%	Array Bit Manipulation	Read
2434. Using a Robot to Print the Lexicographically Smallest String	Medium	62.5%	Greedy Hash Table+2	Read
2436. Minimum Split Into Subarrays With GCD Greater Than One	Medium	70.2%	Array Dynamic Programming+3	Read
2438. Range Product Queries of Powers	Medium	61.4%	Array Bit Manipulation+1	Read
2439. Minimize Maximum of Array	Medium	46.4%	Array Binary Search+3	Read
2442. Count Number of Distinct Integers After Reverse Operations	Medium	81.4%	Array Counting+2	Read
2443. Sum of Number and Its Reverse	Medium	50.0%	Enumeration Math	Read
2445. Number of Nodes With Value One	Medium	66.3%	Binary Tree Breadth-First Search+2	Read
2447. Number of Subarrays With GCD Equal to K	Medium	53.3%	Array Math+1	Read
2450. Number of Distinct Binary Strings After Applying Operations	Medium	63.0%	Math String	Read
2452. Words Within Two Edits of Dictionary	Medium	73.4%	Array String	Read
2453. Destroy Sequential Targets	Medium	42.4%	Array Counting+1	Read
2456. Most Popular Video Creator	Medium	45.3%	Array Hash Table+3	Read
2457. Minimum Addition to Make Integer Beautiful	Medium	38.6%	Greedy Math	Read
2461. Maximum Sum of Distinct Subarrays With Length K	Medium	43.5%	Array Hash Table+1	Read
2462. Total Cost to Hire K Workers	Medium	43.6%	Array Heap (Priority Queue)+2	Read
2464. Minimum Subarrays in a Valid Split	Medium	64.7%	Array Dynamic Programming+2	Read
2466. Count Ways To Build Good Strings	Medium	58.9%	Dynamic Programming	Read
2467. Most Profitable Path in a Tree	Medium	67.3%	Array Breadth-First Search+3	Read
2470. Number of Subarrays With LCM Equal to K	Medium	47.6%	Array Math+1	Read
2471. Minimum Number of Operations to Sort a Binary Tree by Level	Medium	74.2%	Binary Tree Breadth-First Search+1	Read
2473. Minimum Cost to Buy Apples	Medium	67.5%	Array Graph+2	Read
2476. Closest Nodes Queries in a Binary Search Tree	Medium	44.9%	Array Binary Search+4	Read
2477. Minimum Fuel Cost to Report to the Capital	Medium	65.0%	Breadth-First Search Depth-First Search+2	Read
2482. Difference Between Ones and Zeros in Row and Column	Medium	84.3%	Array Matrix+1	Read
2483. Minimum Penalty for a Shop	Medium	71.2%	Prefix Sum String	Read
2486. Append Characters to String to Make Subsequence	Medium	72.9%	Greedy String+1	Read
2487. Remove Nodes From Linked List	Medium	75.0%	Linked List Monotonic Stack+2	Read
2489. Number of Substrings With Fixed Ratio	Medium	56.0%	Hash Table Math+2	Read
2491. Divide Players Into Teams of Equal Skill	Medium	69.0%	Array Hash Table+2	Read
2492. Minimum Score of a Path Between Two Cities	Medium	66.2%	Breadth-First Search Depth-First Search+2	Read
2495. Number of Subarrays Having Even Product	Medium	63.2%	Array Dynamic Programming+1	Read
2497. Maximum Star Sum of a Graph	Medium	42.6%	Array Graph+3	Read
2498. Frog Jump II	Medium	62.6%	Array Binary Search+1	Read
2501. Longest Square Streak in an Array	Medium	53.1%	Array Binary Search+3	Read
2502. Design Memory Allocator	Medium	50.4%	Array Design+2	Read
2505. Bitwise OR of All Subsequence Sums	Medium	63.4%	Array Bit Manipulation+2	Read
2507. Smallest Value After Replacing With Sum of Prime Factors	Medium	50.4%	Math Number Theory+1	Read
2510. Check if There is a Path With Equal Number of 0's And 1's	Medium	51.9%	Array Dynamic Programming+1	Read
2512. Reward Top K Students	Medium	47.5%	Array Hash Table+3	Read
2513. Minimize the Maximum of Two Arrays	Medium	32.8%	Binary Search Math+1	Read
2516. Take K of Each Character From Left and Right	Medium	51.4%	Hash Table Sliding Window+1	Read
2517. Maximum Tastiness of Candy Basket	Medium	68.6%	Array Binary Search+2	Read
2521. Distinct Prime Factors of Product of Array	Medium	54.9%	Array Hash Table+2	Read
2522. Partition String Into Substrings With Values at Most K	Medium	47.6%	Dynamic Programming Greedy+1	Read
2523. Closest Prime Numbers in Range	Medium	51.7%	Math Number Theory	Read
2526. Find Consecutive Integers from a Data Stream	Medium	51.5%	Counting Data Stream+3	Read
2527. Find Xor-Beauty of Array	Medium	71.3%	Array Bit Manipulation+1	Read
2530. Maximal Score After Applying K Operations	Medium	63.7%	Array Greedy+1	Read
2531. Make Number of Distinct Characters Equal	Medium	27.5%	Counting Hash Table+1	Read

#2433Medium

Find The Original Array of Prefix Xor

ArrayBit Manipulation

Acceptance: 88.0%

#2434Medium

Using a Robot to Print the Lexicographically Smallest String

GreedyHash TableStack+1

Acceptance: 62.5%

#2436Medium

Minimum Split Into Subarrays With GCD Greater Than One

ArrayDynamic ProgrammingGreedy+2

Acceptance: 70.2%

#2438Medium

Range Product Queries of Powers

ArrayBit ManipulationPrefix Sum

Acceptance: 61.4%

#2439Medium

Minimize Maximum of Array

ArrayBinary SearchDynamic Programming+2

Acceptance: 46.4%

#2442Medium

Count Number of Distinct Integers After Reverse Operations

ArrayCountingHash Table+1

Acceptance: 81.4%

#2443Medium

Sum of Number and Its Reverse

EnumerationMath

Acceptance: 50.0%

#2445Medium

Number of Nodes With Value One

Binary TreeBreadth-First SearchDepth-First Search+1

Acceptance: 66.3%

#2447Medium

Number of Subarrays With GCD Equal to K

ArrayMathNumber Theory

Acceptance: 53.3%

#2450Medium

Number of Distinct Binary Strings After Applying Operations

MathString

Acceptance: 63.0%

#2452Medium

Words Within Two Edits of Dictionary

ArrayString

Acceptance: 73.4%

#2453Medium

Destroy Sequential Targets

ArrayCountingHash Table

Acceptance: 42.4%

#2456Medium

Most Popular Video Creator

ArrayHash TableHeap (Priority Queue)+2

Acceptance: 45.3%

#2457Medium

Minimum Addition to Make Integer Beautiful

GreedyMath

Acceptance: 38.6%

#2461Medium

Maximum Sum of Distinct Subarrays With Length K

ArrayHash TableSliding Window

Acceptance: 43.5%

#2462Medium

Total Cost to Hire K Workers

ArrayHeap (Priority Queue)Simulation+1

Acceptance: 43.6%

#2464Medium

Minimum Subarrays in a Valid Split

ArrayDynamic ProgrammingMath+1

Acceptance: 64.7%

#2466Medium

Count Ways To Build Good Strings

Dynamic Programming

Acceptance: 58.9%

#2467Medium

Most Profitable Path in a Tree

ArrayBreadth-First SearchDepth-First Search+2

Acceptance: 67.3%

#2470Medium

Number of Subarrays With LCM Equal to K

ArrayMathNumber Theory

Acceptance: 47.6%

#2471Medium

Minimum Number of Operations to Sort a Binary Tree by Level

Binary TreeBreadth-First SearchTree

Acceptance: 74.2%

#2473Medium

Minimum Cost to Buy Apples

ArrayGraphHeap (Priority Queue)+1

Acceptance: 67.5%

#2476Medium

Closest Nodes Queries in a Binary Search Tree

ArrayBinary SearchBinary Search Tree+3

Acceptance: 44.9%

#2477Medium

Minimum Fuel Cost to Report to the Capital

Breadth-First SearchDepth-First SearchGraph+1

Acceptance: 65.0%

#2482Medium

Difference Between Ones and Zeros in Row and Column

ArrayMatrixSimulation

Acceptance: 84.3%

#2483Medium

Minimum Penalty for a Shop

Prefix SumString

Acceptance: 71.2%

#2486Medium

Append Characters to String to Make Subsequence

GreedyStringTwo Pointers

Acceptance: 72.9%

#2487Medium

Remove Nodes From Linked List

Linked ListMonotonic StackRecursion+1

Acceptance: 75.0%

#2489Medium

Number of Substrings With Fixed Ratio

Hash TableMathPrefix Sum+1

Acceptance: 56.0%

#2491Medium

Divide Players Into Teams of Equal Skill

ArrayHash TableSorting+1

Acceptance: 69.0%

#2492Medium

Minimum Score of a Path Between Two Cities

Breadth-First SearchDepth-First SearchGraph+1

Acceptance: 66.2%

#2495Medium

Number of Subarrays Having Even Product

ArrayDynamic ProgrammingMath

Acceptance: 63.2%

#2497Medium

Maximum Star Sum of a Graph

ArrayGraphGreedy+2

Acceptance: 42.6%

#2498Medium

Frog Jump II

ArrayBinary SearchGreedy

Acceptance: 62.6%

#2501Medium

Longest Square Streak in an Array

ArrayBinary SearchDynamic Programming+2

Acceptance: 53.1%

#2502Medium

Design Memory Allocator

ArrayDesignHash Table+1

Acceptance: 50.4%

#2505Medium

Bitwise OR of All Subsequence Sums

ArrayBit ManipulationBrainteaser+1

Acceptance: 63.4%

#2507Medium

Smallest Value After Replacing With Sum of Prime Factors

MathNumber TheorySimulation

Acceptance: 50.4%

#2510Medium

Check if There is a Path With Equal Number of 0's And 1's

ArrayDynamic ProgrammingMatrix

Acceptance: 51.9%

#2512Medium

Reward Top K Students

ArrayHash TableHeap (Priority Queue)+2

Acceptance: 47.5%

#2513Medium

Minimize the Maximum of Two Arrays

Binary SearchMathNumber Theory

Acceptance: 32.8%

#2516Medium

Take K of Each Character From Left and Right

Hash TableSliding WindowString

Acceptance: 51.4%

#2517Medium

Maximum Tastiness of Candy Basket

ArrayBinary SearchGreedy+1

Acceptance: 68.6%

#2521Medium

Distinct Prime Factors of Product of Array

ArrayHash TableMath+1

Acceptance: 54.9%

#2522Medium

Partition String Into Substrings With Values at Most K

Dynamic ProgrammingGreedyString

Acceptance: 47.6%

#2523Medium

Closest Prime Numbers in Range

MathNumber Theory

Acceptance: 51.7%

#2526Medium

Find Consecutive Integers from a Data Stream

CountingData StreamDesign+2

Acceptance: 51.5%

#2527Medium

Find Xor-Beauty of Array

ArrayBit ManipulationMath

Acceptance: 71.3%

#2530Medium

Maximal Score After Applying K Operations

ArrayGreedyHeap (Priority Queue)

Acceptance: 63.7%

#2531Medium

Make Number of Distinct Characters Equal

CountingHash TableString

Acceptance: 27.5%

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Master DSA with Step-by-Step Solutions

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