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
2251. Number of Flowers in Full Bloom	Hard	57.8%	Array Binary Search+4	Read
2252. Dynamic Pivoting of a Table	Hard	56.0%	Database	Read
2253. Dynamic Unpivoting of a Table	Hard	66.9%	Database	Read
2254. Design Video Sharing Platform	Hard	64.1%	Design Hash Table+2	Read
2255. Count Prefixes of a Given String	Easy	74.3%	Array String	Read
2256. Minimum Average Difference	Medium	43.8%	Array Prefix Sum	Read
2257. Count Unguarded Cells in the Grid	Medium	69.0%	Array Matrix+1	Read
2258. Escape the Spreading Fire	Hard	39.1%	Array Binary Search+2	Read
2259. Remove Digit From Number to Maximize Result	Easy	48.4%	Enumeration Greedy+1	Read
2260. Minimum Consecutive Cards to Pick Up	Medium	53.6%	Array Hash Table+1	Read
2261. K Divisible Elements Subarrays	Medium	54.9%	Array Enumeration+4	Read
2262. Total Appeal of A String	Hard	56.4%	Dynamic Programming Hash Table+1	Read
2263. Make Array Non-decreasing or Non-increasing	Hard	64.7%	Dynamic Programming Greedy	Read
2264. Largest 3-Same-Digit Number in String	Easy	72.7%	String	Read
2265. Count Nodes Equal to Average of Subtree	Medium	88.6%	Binary Tree Depth-First Search+1	Read
2266. Count Number of Texts	Medium	50.6%	Dynamic Programming Hash Table+2	Read
2267. Check if There Is a Valid Parentheses String Path	Hard	40.7%	Array Dynamic Programming+1	Read
2268. Minimum Number of Keypresses	Medium	71.2%	Counting Greedy+3	Read
2269. Find the K-Beauty of a Number	Easy	63.8%	Math Sliding Window+1	Read
2270. Number of Ways to Split Array	Medium	55.9%	Array Prefix Sum	Read
2271. Maximum White Tiles Covered by a Carpet	Medium	36.3%	Array Binary Search+3	Read
2272. Substring With Largest Variance	Hard	46.1%	Array Dynamic Programming	Read
2273. Find Resultant Array After Removing Anagrams	Easy	69.9%	Array Hash Table+2	Read
2274. Maximum Consecutive Floors Without Special Floors	Medium	52.5%	Array Sorting	Read
2275. Largest Combination With Bitwise AND Greater Than Zero	Medium	81.0%	Array Bit Manipulation+2	Read
2276. Count Integers in Intervals	Hard	36.1%	Design Ordered Set+1	Read
2277. Closest Node to Path in Tree	Hard	62.1%	Array Breadth-First Search+2	Read
2278. Percentage of Letter in String	Easy	75.1%	String	Read
2279. Maximum Bags With Full Capacity of Rocks	Medium	68.0%	Array Greedy+1	Read
2280. Minimum Lines to Represent a Line Chart	Medium	26.9%	Array Geometry+3	Read
2281. Sum of Total Strength of Wizards	Hard	29.8%	Array Monotonic Stack+2	Read
2282. Number of People That Can Be Seen in a Grid	Medium	46.8%	Array Matrix+2	Read
2283. Check if Number Has Equal Digit Count and Digit Value	Easy	73.1%	Counting Hash Table+1	Read
2284. Sender With Largest Word Count	Medium	60.2%	Array Counting+2	Read
2285. Maximum Total Importance of Roads	Medium	69.3%	Graph Greedy+2	Read
2286. Booking Concert Tickets in Groups	Hard	20.1%	Binary Indexed Tree Binary Search+2	Read
2287. Rearrange Characters to Make Target String	Easy	63.0%	Counting Hash Table+1	Read
2288. Apply Discount to Prices	Medium	34.5%	String	Read
2289. Steps to Make Array Non-decreasing	Medium	25.3%	Array Linked List+2	Read
2290. Minimum Obstacle Removal to Reach Corner	Hard	71.1%	Array Breadth-First Search+4	Read
2291. Maximum Profit From Trading Stocks	Medium	48.1%	Array Dynamic Programming	Read
2292. Products With Three or More Orders in Two Consecutive Years	Medium	39.7%	Database	Read
2293. Min Max Game	Easy	64.3%	Array Simulation	Read
2294. Partition Array Such That Maximum Difference Is K	Medium	81.8%	Array Greedy+1	Read
2295. Replace Elements in an Array	Medium	59.7%	Array Hash Table+1	Read
2296. Design a Text Editor	Hard	51.5%	Design Doubly-Linked List+4	Read
2297. Jump Game VIII	Medium	45.5%	Array Dynamic Programming+4	Read
2298. Tasks Count in the Weekend	Medium	81.7%	Database	Read
2299. Strong Password Checker II	Easy	55.5%	String	Read
2300. Successful Pairs of Spells and Potions	Medium	49.5%	Array Binary Search+2	Read

#2251Hard

Number of Flowers in Full Bloom

ArrayBinary SearchHash Table+3

Acceptance: 57.8%

#2252Hard

Dynamic Pivoting of a Table

Database

Acceptance: 56.0%

#2253Hard

Dynamic Unpivoting of a Table

Database

Acceptance: 66.9%

#2254Hard

Design Video Sharing Platform

DesignHash TableOrdered Set+1

Acceptance: 64.1%

#2255Easy

Count Prefixes of a Given String

ArrayString

Acceptance: 74.3%

#2256Medium

Minimum Average Difference

ArrayPrefix Sum

Acceptance: 43.8%

#2257Medium

Count Unguarded Cells in the Grid

ArrayMatrixSimulation

Acceptance: 69.0%

#2258Hard

Escape the Spreading Fire

ArrayBinary SearchBreadth-First Search+1

Acceptance: 39.1%

#2259Easy

Remove Digit From Number to Maximize Result

EnumerationGreedyString

Acceptance: 48.4%

#2260Medium

Minimum Consecutive Cards to Pick Up

ArrayHash TableSliding Window

Acceptance: 53.6%

#2261Medium

K Divisible Elements Subarrays

ArrayEnumerationHash Function+3

Acceptance: 54.9%

#2262Hard

Total Appeal of A String

Dynamic ProgrammingHash TableString

Acceptance: 56.4%

#2263Hard

Make Array Non-decreasing or Non-increasing

Dynamic ProgrammingGreedy

Acceptance: 64.7%

#2264Easy

Largest 3-Same-Digit Number in String

String

Acceptance: 72.7%

#2265Medium

Count Nodes Equal to Average of Subtree

Binary TreeDepth-First SearchTree

Acceptance: 88.6%

#2266Medium

Count Number of Texts

Dynamic ProgrammingHash TableMath+1

Acceptance: 50.6%

#2267Hard

Check if There Is a Valid Parentheses String Path

ArrayDynamic ProgrammingMatrix

Acceptance: 40.7%

#2268Medium

Minimum Number of Keypresses

CountingGreedyHash Table+2

Acceptance: 71.2%

#2269Easy

Find the K-Beauty of a Number

MathSliding WindowString

Acceptance: 63.8%

#2270Medium

Number of Ways to Split Array

ArrayPrefix Sum

Acceptance: 55.9%

#2271Medium

Maximum White Tiles Covered by a Carpet

ArrayBinary SearchGreedy+2

Acceptance: 36.3%

#2272Hard

Substring With Largest Variance

ArrayDynamic Programming

Acceptance: 46.1%

#2273Easy

Find Resultant Array After Removing Anagrams

ArrayHash TableSorting+1

Acceptance: 69.9%

#2274Medium

Maximum Consecutive Floors Without Special Floors

ArraySorting

Acceptance: 52.5%

#2275Medium

Largest Combination With Bitwise AND Greater Than Zero

ArrayBit ManipulationCounting+1

Acceptance: 81.0%

#2276Hard

Count Integers in Intervals

DesignOrdered SetSegment Tree

Acceptance: 36.1%

#2277Hard

Closest Node to Path in Tree

ArrayBreadth-First SearchDepth-First Search+1

Acceptance: 62.1%

#2278Easy

Percentage of Letter in String

String

Acceptance: 75.1%

#2279Medium

Maximum Bags With Full Capacity of Rocks

ArrayGreedySorting

Acceptance: 68.0%

#2280Medium

Minimum Lines to Represent a Line Chart

ArrayGeometryMath+2

Acceptance: 26.9%

#2281Hard

Sum of Total Strength of Wizards

ArrayMonotonic StackPrefix Sum+1

Acceptance: 29.8%

#2282Medium

Number of People That Can Be Seen in a Grid

ArrayMatrixMonotonic Stack+1

Acceptance: 46.8%

#2283Easy

Check if Number Has Equal Digit Count and Digit Value

CountingHash TableString

Acceptance: 73.1%

#2284Medium

Sender With Largest Word Count

ArrayCountingHash Table+1

Acceptance: 60.2%

#2285Medium

Maximum Total Importance of Roads

GraphGreedyHeap (Priority Queue)+1

Acceptance: 69.3%

#2286Hard

Booking Concert Tickets in Groups

Binary Indexed TreeBinary SearchDesign+1

Acceptance: 20.1%

#2287Easy

Rearrange Characters to Make Target String

CountingHash TableString

Acceptance: 63.0%

#2288Medium

Apply Discount to Prices

String

Acceptance: 34.5%

#2289Medium

Steps to Make Array Non-decreasing

ArrayLinked ListMonotonic Stack+1

Acceptance: 25.3%

#2290Hard

Minimum Obstacle Removal to Reach Corner

ArrayBreadth-First SearchGraph+3

Acceptance: 71.1%

#2291Medium

Maximum Profit From Trading Stocks

ArrayDynamic Programming

Acceptance: 48.1%

#2292Medium

Products With Three or More Orders in Two Consecutive Years

Database

Acceptance: 39.7%

#2293Easy

Min Max Game

ArraySimulation

Acceptance: 64.3%

#2294Medium

Partition Array Such That Maximum Difference Is K

ArrayGreedySorting

Acceptance: 81.8%

#2295Medium

Replace Elements in an Array

ArrayHash TableSimulation

Acceptance: 59.7%

#2296Hard

Design a Text Editor

DesignDoubly-Linked ListLinked List+3

Acceptance: 51.5%

#2297Medium

Jump Game VIII

ArrayDynamic ProgrammingGraph+3

Acceptance: 45.5%

#2298Medium

Tasks Count in the Weekend

Database

Acceptance: 81.7%

#2299Easy

Strong Password Checker II

String

Acceptance: 55.5%

#2300Medium

Successful Pairs of Spells and Potions

ArrayBinary SearchSorting+1

Acceptance: 49.5%

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Master DSA with Step-by-Step Solutions

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