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
2451. Odd String Difference	Easy	61.9%	Array Hash Table+1	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
2454. Next Greater Element IV	Hard	43.0%	Array Binary Search+4	Read
2455. Average Value of Even Numbers That Are Divisible by Three	Easy	63.6%	Array Math	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
2458. Height of Binary Tree After Subtree Removal Queries	Hard	55.0%	Array Binary Tree+3	Read
2459. Sort Array by Moving Items to Empty Space	Hard	45.7%	Array Greedy+1	Read
2460. Apply Operations to an Array	Easy	74.7%	Array Simulation+1	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
2463. Minimum Total Distance Traveled	Hard	63.2%	Array Dynamic Programming+1	Read
2464. Minimum Subarrays in a Valid Split	Medium	64.7%	Array Dynamic Programming+2	Read
2465. Number of Distinct Averages	Easy	58.9%	Array Hash Table+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
2468. Split Message Based on Limit	Hard	42.1%	Binary Search String	Read
2469. Convert the Temperature	Easy	90.4%	Math	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
2472. Maximum Number of Non-overlapping Palindrome Substrings	Hard	60.9%	Dynamic Programming Greedy+2	Read
2473. Minimum Cost to Buy Apples	Medium	67.5%	Array Graph+2	Read
2474. Customers With Strictly Increasing Purchases	Hard	45.9%	Database	Read
2475. Number of Unequal Triplets in Array	Easy	73.3%	Array Hash Table+1	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
2478. Number of Beautiful Partitions	Hard	33.5%	Dynamic Programming String	Read
2479. Maximum XOR of Two Non-Overlapping Subtrees	Hard	51.3%	Depth-First Search Graph+2	Read
2480. Form a Chemical Bond	Easy	77.0%	Database	Read
2481. Minimum Cuts to Divide a Circle	Easy	56.7%	Geometry Math	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
2484. Count Palindromic Subsequences	Hard	41.7%	Dynamic Programming String	Read
2485. Find the Pivot Integer	Easy	83.8%	Math Prefix Sum	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
2488. Count Subarrays With Median K	Hard	49.1%	Array Hash Table+1	Read
2489. Number of Substrings With Fixed Ratio	Medium	56.0%	Hash Table Math+2	Read
2490. Circular Sentence	Easy	70.2%	String	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
2493. Divide Nodes Into the Maximum Number of Groups	Hard	67.0%	Breadth-First Search Graph+1	Read
2494. Merge Overlapping Events in the Same Hall	Hard	32.9%	Database	Read
2495. Number of Subarrays Having Even Product	Medium	63.2%	Array Dynamic Programming+1	Read
2496. Maximum Value of a String in an Array	Easy	74.2%	Array String	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
2499. Minimum Total Cost to Make Arrays Unequal	Hard	41.3%	Array Counting+2	Read
2500. Delete Greatest Value in Each Row	Easy	80.5%	Array Heap (Priority Queue)+3	Read

#2451Easy

Odd String Difference

ArrayHash TableString

Acceptance: 61.9%

#2452Medium

Words Within Two Edits of Dictionary

ArrayString

Acceptance: 73.4%

#2453Medium

Destroy Sequential Targets

ArrayCountingHash Table

Acceptance: 42.4%

#2454Hard

Next Greater Element IV

ArrayBinary SearchHeap (Priority Queue)+3

Acceptance: 43.0%

#2455Easy

Average Value of Even Numbers That Are Divisible by Three

ArrayMath

Acceptance: 63.6%

#2456Medium

Most Popular Video Creator

ArrayHash TableHeap (Priority Queue)+2

Acceptance: 45.3%

#2457Medium

Minimum Addition to Make Integer Beautiful

GreedyMath

Acceptance: 38.6%

#2458Hard

Height of Binary Tree After Subtree Removal Queries

ArrayBinary TreeBreadth-First Search+2

Acceptance: 55.0%

#2459Hard

Sort Array by Moving Items to Empty Space

ArrayGreedySorting

Acceptance: 45.7%

#2460Easy

Apply Operations to an Array

ArraySimulationTwo Pointers

Acceptance: 74.7%

#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%

#2463Hard

Minimum Total Distance Traveled

ArrayDynamic ProgrammingSorting

Acceptance: 63.2%

#2464Medium

Minimum Subarrays in a Valid Split

ArrayDynamic ProgrammingMath+1

Acceptance: 64.7%

#2465Easy

Number of Distinct Averages

ArrayHash TableSorting+1

Acceptance: 58.9%

#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%

#2468Hard

Split Message Based on Limit

Binary SearchString

Acceptance: 42.1%

#2469Easy

Convert the Temperature

Math

Acceptance: 90.4%

#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%

#2472Hard

Maximum Number of Non-overlapping Palindrome Substrings

Dynamic ProgrammingGreedyString+1

Acceptance: 60.9%

#2473Medium

Minimum Cost to Buy Apples

ArrayGraphHeap (Priority Queue)+1

Acceptance: 67.5%

#2474Hard

Customers With Strictly Increasing Purchases

Database

Acceptance: 45.9%

#2475Easy

Number of Unequal Triplets in Array

ArrayHash TableSorting

Acceptance: 73.3%

#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%

#2478Hard

Number of Beautiful Partitions

Dynamic ProgrammingString

Acceptance: 33.5%

#2479Hard

Maximum XOR of Two Non-Overlapping Subtrees

Depth-First SearchGraphTree+1

Acceptance: 51.3%

#2480Easy

Form a Chemical Bond

Database

Acceptance: 77.0%

#2481Easy

Minimum Cuts to Divide a Circle

GeometryMath

Acceptance: 56.7%

#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%

#2484Hard

Count Palindromic Subsequences

Dynamic ProgrammingString

Acceptance: 41.7%

#2485Easy

Find the Pivot Integer

MathPrefix Sum

Acceptance: 83.8%

#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%

#2488Hard

Count Subarrays With Median K

ArrayHash TablePrefix Sum

Acceptance: 49.1%

#2489Medium

Number of Substrings With Fixed Ratio

Hash TableMathPrefix Sum+1

Acceptance: 56.0%

#2490Easy

Circular Sentence

String

Acceptance: 70.2%

#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%

#2493Hard

Divide Nodes Into the Maximum Number of Groups

Breadth-First SearchGraphUnion Find

Acceptance: 67.0%

#2494Hard

Merge Overlapping Events in the Same Hall

Database

Acceptance: 32.9%

#2495Medium

Number of Subarrays Having Even Product

ArrayDynamic ProgrammingMath

Acceptance: 63.2%

#2496Easy

Maximum Value of a String in an Array

ArrayString

Acceptance: 74.2%

#2497Medium

Maximum Star Sum of a Graph

ArrayGraphGreedy+2

Acceptance: 42.6%

#2498Medium

Frog Jump II

ArrayBinary SearchGreedy

Acceptance: 62.6%

#2499Hard

Minimum Total Cost to Make Arrays Unequal

ArrayCountingGreedy+1

Acceptance: 41.3%

#2500Easy

Delete Greatest Value in Each Row

ArrayHeap (Priority Queue)Matrix+2

Acceptance: 80.5%

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