2024
- - 2441. Largest Positive Integer That Exists With Its Negative
- - 988. Smallest String Starting From Leaf
- - 129. Sum Root to Leaf Numbers
- - 404. Sum of Left Leaves
- - 1614. Maximum Nesting Depth of the Parentheses
- - 205. Isomorphic Strings
- - 2444. Count Subarrays With Fixed Bounds
- - 2962. Count Subarrays Where Max Element Appears at Least K Times
- - 713. Subarray Product Less Than K
- - 1669. Merge In Between Linked Lists
- - 452. Minimum Number of Arrows to Burst Balloons
- - 3079. Find the Sum of Encrypted Integers
- - 100. Same Tree
- - 2971. Find Polygon With the Largest Perimeter
- - 2908. Minimum Sum of Mountain Triplets I
- - 2903. Find Indices With Index and Value Difference I
- - 2899. Last Visited Integers
- - 2894. Divisible and Non-divisible Sums Difference
- - 2891. Method Chaining
- - 2890. Reshape Data Melt
- - 2889. Reshape Data Pivot
- - 2888. Reshape Data Concatenate
- - 2887. Fill Missing Data
- - 2886. Change Data Type
- - 2885. Rename Columns
- - 2884. Modify Columns
- - 2883. Drop Missing Data
- - 2882. Drop Duplicate Rows
- - 2881. Create a New Column
- - 2880. Select Data
- - 2879. Display the First Three Rows
- - 2878. Get the Size of a DataFrame
- - 2877. Create a DataFrame from List
- - 2873. Maximum Value of an Ordered Triplet I
- - 2869. Minimum Operations to Collect Elements
- - 2864. Maximum Odd Binary Number
- - 2859. Sum of Values at Indices With K Set Bits
- - 2855. Minimum Right Shifts to Sort the Array
- - 2709. Greatest Common Divisor Traversal
- - 2540. Minimum Common Value
- - 2485. Find the Pivot Integer
- - 2431. Maximize Total Tastiness of Purchased Fruits
- - 2430. Maximum Deletions on a String
- - 2429. Minimize XOR
- - 2428. Maximum Sum of an Hourglass
- - 2427. Number of Common Factors
- - 2426. Number of Pairs Satisfying Inequality
- - 2425. Bitwise XOR of All Pairings
- - 2424. Longest Uploaded Prefix
- - 2423. Remove Letter To Equalize Frequency
- - 2422. Merge Operations to Turn Array Into a Palindrome
- - 2421. Number of Good Paths
- - 2420. Find All Good Indices
- - 2419. Longest Subarray With Maximum Bitwise AND
- - 2418. Sort the People
- - 2417. Closest Fair Integer
- - 2416. Sum of Prefix Scores of Strings
- - 2415. Reverse Odd Levels of Binary Tree
- - 2414. Length of the Longest Alphabetical Continuous Substring
- - 2413. Smallest Even Multiple
- - 2412. Minimum Money Required Before Transactions
- - 2411. Smallest Subarrays With Maximum Bitwise OR
- - 2410. Maximum Matching of Players With Trainers
- - 2409. Count Days Spent Together
- - 2408. Design SQL
- - 2407. Longest Increasing Subsequence II
- - 2406. Divide Intervals Into Minimum Number of Groups
- - 2405. Optimal Partition of String
- - 2404. Most Frequent Even Element
- - 2403. Minimum Time to Kill All Monsters
- - 2401. Longest Nice Subarray
- - 2400. Number of Ways to Reach a Position After Exactly k Steps
- - 2399. Check Distances Between Same Letters
- - 2398. Maximum Number of Robots Within Budget
- - 2397. Maximum Rows Covered by Columns
- - 2396. Strictly Palindromic Number
- - 2395. Find Subarrays With Equal Sum
- - 2393. Count Strictly Increasing Subarrays
- - 2392. Build a Matrix With Conditions
- - 2391. Minimum Amount of Time to Collect Garbage
- - 2389. Longest Subsequence With Limited Sum
- - 2387. Median of a Row Wise Sorted Matrix
- - 2386. Find the K-Sum of an Array
- - 2385. Amount of Time for Binary Tree to Be Infected
- - 2384. Largest Palindromic Number
- - 2383. Minimum Hours of Training to Win a Competition
- - 2382. Maximum Segment Sum After Removals
- - 2381. Shifting Letters II
- - 2380. Time Needed to Rearrange a Binary String
- - 2379. Minimum Recolors to Get K Consecutive Black Blocks
- - 2378. Choose Edges to Maximize Score in a Tree
- - 2376. Count Special Integers
- - 2375. Construct Smallest Number From DI String
- - 2374. Node With Highest Edge Score
- - 2373. Largest Local Values in a Matrix
- - 2371. Minimize Maximum Value in a Grid
- - 2370. Longest Ideal Subsequence
- - 2369. Check if There is a Valid Partition For The Array
- - 2368. Reachable Nodes With Restrictions
- - 2367. Number of Arithmetic Triplets
- - 2366. Minimum Replacements to Sort the Array
- - 2365. Task Scheduler II
- - 2364. Count Number of Bad Pairs
- - 2363. Merge Similar Items
- - 2361. Minimum Costs Using the Train Line
- - 2360. Longest Cycle in a Graph
- - 2359. Find Closest Node to Given Two Nodes
- - 2358. Maximum Number of Groups Entering a Competition
- - 2357. Make Array Zero by Subtracting Equal Amounts
- - 2355. Maximum Number of Books You Can Take
- - 2354. Number of Excellent Pairs
- - 2353. Design a Food Rating System
- - 2351. First Letter to Appear Twice
- - 2350. Shortest Impossible Sequence of Rolls
- - 2349. Design a Number Container System
- - 2348. Number of Zero-Filled Subarrays
- - 2347. Best Poker Hand
- - 2345. Finding the Number of Visible Mountains
- - 2344. Minimum Deletions to Make Array Divisible
- - 2343. Query Kth Smallest Trimmed Number
- - 2342. Max Sum of a Pair With Equal Sum of Digits
- - 2341. Maximum Number of Pairs in Array
- - 2340. Minimum Adjacent Swaps to Make a Valid Array
- - 2338. Count the Number of Ideal Arrays
- - 2337. Move Pieces to Obtain a String
- - 2336. Smallest Number in Infinite Set
- - 2335. Minimum Amount of Time to Fill Cups
- - 2334. Subarray With Elements Greater Than Varying Threshold
- - 2333. Minimum Sum of Squared Difference
- - 2332. The Latest Time to Catch a Bus
- - 2331. Evaluate Boolean Binary Tree
- - 2330. Valid Palindrome IV
- - 2328. Number of Increasing Paths in a Grid
- - 2327. Number of People Aware of a Secret
- - 2326. Spiral Matrix IV
- - 2325. Decode the Message
- - 2323. Find Minimum Time to Finish All Jobs II
- - 2322. Minimum Score After Removals on a Tree
- - 2321. Maximum Score Of Spliced Array
- - 2320. Count Number of Ways to Place Houses
- - 2319. Check if Matrix Is X-Matrix
- - 2318. Number of Distinct Roll Sequences
- - 2317. Maximum XOR After Operations
- - 2316. Count Unreachable Pairs of Nodes in an Undirected Graph
- - 2315. Count Asterisks
- - 2313. Minimum Flips in Binary Tree to Get Result
- - 2312. Selling Pieces of Wood
- - 2311. Longest Binary Subsequence Less Than or Equal to K
- - 2310. Sum of Numbers With Units Digit K
- - 2309. Greatest English Letter in Upper and Lower Case
- - 2307. Check for Contradictions in Equations
- - 2306. Naming a Company
- - 2305. Fair Distribution of Cookies
- - 2304. Minimum Path Cost in a Grid
- - 2303. Calculate Amount Paid in Taxes
- - 2302. Count Subarrays With Score Less Than K
- - 2301. Match Substring After Replacement
- - 2300. Successful Pairs of Spells and Potions
- - 2299. Strong Password Checker II
- - 2297. Jump Game VIII
- - 2296. Design a Text Editor
- - 2295. Replace Elements in an Array
- - 2294. Partition Array Such That Maximum Difference Is K
- - 2293. Min Max Game
- - 2291. Maximum Profit From Trading Stocks
- - 2290. Minimum Obstacle Removal to Reach Corner
- - 2289. Steps to Make Array Non-decreasing
- - 2288. Apply Discount to Prices
- - 2287. Rearrange Characters to Make Target String
- - 2286. Booking Concert Tickets in Groups
- - 2285. Maximum Total Importance of Roads
- - 2284. Sender With Largest Word Count
- - 2283. Check if Number Has Equal Digit Count and Digit Value
- - 2282. Number of People That Can Be Seen in a Grid
- - 2281. Sum of Total Strength of Wizards
- - 2280. Minimum Lines to Represent a Line Chart
- - 2279. Maximum Bags With Full Capacity of Rocks
- - 2278. Percentage of Letter in String
- - 2276. Count Integers in Intervals
- - 2275. Largest Combination With Bitwise AND Greater Than Zero
- - 2274. Maximum Consecutive Floors Without Special Floors
- - 2273. Find Resultant Array After Removing Anagrams
- - 2272. Substring With Largest Variance
- - 2271. Maximum White Tiles Covered by a Carpet
- - 2270. Number of Ways to Split Array
- - 2269. Find the K-Beauty of a Number
- - 2268. Minimum Number of Keypresses
- - 2267. Check if There Is a Valid Parentheses String Path
- - 2266. Count Number of Texts
- - 2265. Count Nodes Equal to Average of Subtree
- - 2263. Make Array Non-decreasing or Non-increasing
- - 2262. Total Appeal of A String
- - 2261. K Divisible Elements Subarrays
- - 2260. Minimum Consecutive Cards to Pick Up
- - 2259. Remove Digit From Number to Maximize Result
- - 2258. Escape the Spreading Fire
- - 2257. Count Unguarded Cells in the Grid
- - 2256. Minimum Average Difference
- - 2255. Count Prefixes of a Given String
- - 2250. Count Number of Rectangles Containing Each Point
- - 2249. Count Lattice Points Inside a Circle
- - 2248. Intersection of Multiple Arrays
- - 2247. Maximum Cost of Trip With K Highways
- - 2246. Longest Path With Different Adjacent Characters
- - 2245. Maximum Trailing Zeros in a Cornered Path
- - 2244. Minimum Rounds to Complete All Tasks
- - 2243. Calculate Digit Sum of a String
- - 2242. Maximum Score of a Node Sequence
- - 2241. Design an ATM Machine
- - 2240. Number of Ways to Buy Pens and Pencils
- - 2239. Find Closest Number to Zero
- - 2237. Count Positions on Street With Required Brightness
- - 2236. Root Equals Sum of Children
- - 2235. Add Two Integers
- - 2234. Maximum Total Beauty of the Gardens
- - 2233. Maximum Product After K Increments
- - 2232. Minimize Result by Adding Parentheses to Expression
- - 2231. Largest Number After Digit Swaps by Parity
- - 2229. Check if an Array Is Consecutive
- - 2227. Encrypt and Decrypt Strings
- - 2226. Maximum Candies Allocated to K Children
- - 2225. Find Players With Zero or One Losses
- - 2224. Minimum Number of Operations to Convert Time
- - 2222. Number of Ways to Select Buildings
- - 2221. Find Triangular Sum of an Array
- - 2220. Minimum Bit Flips to Convert Number
- - 2219. Maximum Sum Score of Array
- - 2218. Maximum Value of K Coins From Piles
- - 2217. Find Palindrome With Fixed Length
- - 2216. Minimum Deletions to Make Array Beautiful
- - 2214. Minimum Health to Beat Game
- - 2213. Longest Substring of One Repeating Character
- - 2212. Maximum Points in an Archery Competition
- - 2211. Count Collisions on a Road
- - 2210. Count Hills and Valleys in an Array
- - 2209. Minimum White Tiles After Covering With Carpets
- - 2208. Minimum Operations to Halve Array Sum
- - 2207. Maximize Number of Subsequences in a String
- - 2206. Divide Array Into Equal Pairs
- - 2204. Distance to a Cycle in Undirected Graph
- - 2203. Minimum Weighted Subgraph With the Required Paths
- - 2202. Maximize the Topmost Element After K Moves
- - 2201. Count Artifacts That Can Be Extracted
- - 2200. Find All K-Distant Indices in an Array
- - 2198. Number of Single Divisor Triplets
- - 2196. Create Binary Tree From Descriptions
- - 2195. Append K Integers With Minimal Sum
- - 2194. Cells in a Range on an Excel Sheet
- - 2193. Minimum Number of Moves to Make Palindrome
- - 2192. All Ancestors of a Node in a Directed Acyclic Graph
- - 2191. Sort the Jumbled Numbers
- - 2190. Most Frequent Number Following Key In an Array
- - 2189. Number of Ways to Build House of Cards
- - 2188. Minimum Time to Finish the Race
- - 2187. Minimum Time to Complete Trips
- - 2186. Minimum Number of Steps to Make Two Strings Anagram II
- - 2185. Counting Words With a Given Prefix
- - 2184. Number of Ways to Build Sturdy Brick Wall
- - 2182. Construct String With Repeat Limit
- - 2181. Merge Nodes in Between Zeros
- - 2180. Count Integers With Even Digit Sum
- - 2179. Count Good Triplets in an Array
- - 2178. Maximum Split of Positive Even Integers
- - 2177. Find Three Consecutive Integers That Sum to a Given Number
- - 2176. Count Equal and Divisible Pairs in an Array
- - 2174. Remove All Ones With Row and Column Flips II
- - 2172. Maximum AND Sum of Array
- - 2171. Removing Minimum Number of Magic Beans
- - 2170. Minimum Operations to Make the Array Alternating
- - 2169. Count Operations to Obtain Zero
- - 2168. Unique Substrings With Equal Digit Frequency
- - 2167. Minimum Time to Remove All Cars Containing Illegal Goods
- - 2166. Design Bitset
- - 2165. Smallest Value of the Rearranged Number
- - 2164. Sort Even and Odd Indices Independently
- - 2163. Minimum Difference in Sums After Removal of Elements
- - 2162. Minimum Cost to Set Cooking Time
- - 2161. Partition Array According to Given Pivot
- - 2160. Minimum Sum of Four Digit Number After Splitting Digits
- - 2158. Amount of New Area Painted Each Day
- - 2157. Groups of Strings
- - 2155. All Divisions With the Highest Score of a Binary Array
- - 2154. Keep Multiplying Found Values by Two
- - 2152. Minimum Number of Lines to Cover Points
- - 2151. Maximum Good People Based on Statements
- - 2150. Find All Lonely Numbers in the Array
- - 2149. Rearrange Array Elements by Sign
- - 2148. Count Elements With Strictly Smaller and Greater Elements
- - 2147. Number of Ways to Divide a Long Corridor
- - 2146. K Highest Ranked Items Within a Price Range
- - 2145. Count the Hidden Sequences
- - 2144. Minimum Cost of Buying Candies With Discount
- - 2143. Choose Numbers From Two Arrays in Range
- - 2141. Maximum Running Time of N Computers
- - 2140. Solving Questions With Brainpower
- - 2139. Minimum Moves to Reach Target Score
- - 2138. Divide a String Into Groups of Size k
- - 2137. Pour Water Between Buckets to Make Water Levels Equal
- - 2136. Earliest Possible Day of Full Bloom
- - 2135. Count Words Obtained After Adding a Letter
- - 2133. Check if Every Row and Column Contains All Numbers
- - 2132. Stamping the Grid
- - 2131. Longest Palindrome by Concatenating Two Letter Words
- - 2129. Capitalize the Title
- - 2128. Remove All Ones With Row and Column Flips
- - 2127. Maximum Employees to Be Invited to a Meeting
- - 2126. Destroying Asteroids
- - 2125. Number of Laser Beams in a Bank
- - 2124. Check if All A's Appears Before All B's
- - 2123. Minimum Operations to Remove Adjacent Ones in Matrix
- - 2122. Recover the Original Array
- - 2121. Intervals Between Identical Elements
- - 2120. Execution of All Suffix Instructions Staying in a Grid
- - 2119. A Number After a Double Reversal
- - 2117. Abbreviating the Product of a Range
- - 2116. Check if a Parentheses String Can Be Valid
- - 2115. Find All Possible Recipes from Given Supplies
- - 2114. Maximum Number of Words Found in Sentences
- - 2113. Elements in Array After Removing and Replacing Elements
- - 2111. Minimum Operations to Make the Array K-Increasing
- - 2110. Number of Smooth Descent Periods of a Stock
- - 2109. Adding Spaces to a String
- - 2108. Find First Palindromic String in the Array
- - 2107. Number of Unique Flavors After Sharing K Candies
- - 2106. Maximum Fruits Harvested After at Most K Steps
- - 2105. Watering Plants II
- - 2104. Sum of Subarray Ranges
- - 2103. Rings and Rods
- - 2101. Detonate the Maximum Bombs
- - 2100. Find Good Days to Rob the Bank
- - 2099. Find Subsequence of Length K With the Largest Sum
- - 2098. Subsequence of Size K With the Largest Even Sum
- - 2096. Step-By-Step Directions From a Binary Tree Node to Another
- - 2093. Minimum Cost to Reach City With Discounts
- - 2092. Find All People With Secret
- - 2091. Removing Minimum and Maximum From Array
- - 2090. K Radius Subarray Averages
- - 2089. Find Target Indices After Sorting Array
- - 2088. Count Fertile Pyramids in a Land
- - 2087. Minimum Cost Homecoming of a Robot in a Grid
- - 2086. Minimum Number of Food Buckets to Feed the Hamsters
- - 2085. Count Common Words With One Occurrence
- - 2083. Substrings That Begin and End With the Same Letter
- - 2080. Range Frequency Queries
- - 2079. Watering Plants
- - 2078. Two Furthest Houses With Different Colors
- - 2077. Paths in Maze That Lead to Same Room
- - 2076. Process Restricted Friend Requests
- - 2075. Decode the Slanted Ciphertext
- - 2074. Reverse Nodes in Even Length Groups
- - 2073. Time Needed to Buy Tickets
- - 2071. Maximum Number of Tasks You Can Assign
- - 2070. Most Beautiful Item for Each Query
- - 2068. Check Whether Two Strings are Almost Equivalent
- - 2067. Number of Equal Count Substrings
- - 2064. Minimized Maximum of Products Distributed to Any Store
- - 2063. Vowels of All Substrings
- - 2062. Count Vowel Substrings of a String
- - 2061. Number of Spaces Cleaning Robot Cleaned
- - 2059. Minimum Operations to Convert Number
- - 2058. Find the Minimum and Maximum Number of Nodes Between Critical Points
- - 2057. Smallest Index With Equal Value
- - 2055. Plates Between Candles
- - 2054. Two Best Non-Overlapping Events
- - 2053. Kth Distinct String in an Array
- - 2052. Minimum Cost to Separate Sentence Into Rows
- - 2050. Parallel Courses III
- - 2049. Count Nodes With the Highest Score
- - 2048. Next Greater Numerically Balanced Number
- - 2047. Number of Valid Words in a Sentence
- - 2046. Sort Linked List Already Sorted Using Absolute Values
- - 2045. Second Minimum Time to Reach Destination
- - 2044. Count Number of Maximum Bitwise-OR Subsets
- - 2043. Simple Bank System
- - 2042. Check if Numbers Are Ascending in a Sentence
- - 2039. The Time When the Network Becomes Idle
- - 2038. Remove Colored Pieces if Both Neighbors are the Same Color
- - 2037. Minimum Number of Moves to Seat Everyone
- - 2036. Maximum Alternating Subarray Sum
- - 2035. Partition Array Into Two Arrays to Minimize Sum Difference
- - 2034. Stock Price Fluctuation
- - 2033. Minimum Operations to Make a Uni-Value Grid
- - 2032. Two Out of Three
- - 2031. Count Subarrays With More Ones Than Zeros
- - 2029. Stone Game IX
- - 2028. Find Missing Observations
- - 2027. Minimum Moves to Convert String
- - 2025. Maximum Number of Ways to Partition an Array
- - 2024. Maximize the Confusion of an Exam
- - 2023. Number of Pairs of Strings With Concatenation Equal to Target
- - 2021. Brightest Position on Street
- - 2019. The Score of Students Solving Math Expression
- - 2018. Check if Word Can Be Placed In Crossword
- - 2017. Grid Game
- - 2016. Maximum Difference Between Increasing Elements
- - 2015. Average Height of Buildings in Each Segment
- - 2013. Detect Squares
- - 2012. Sum of Beauty in the Array
- - 2011. Final Value of Variable After Performing Operations
- - 2009. Minimum Number of Operations to Make Array Continuous
- - 2008. Maximum Earnings From Taxi
- - 2007. Find Original Array From Doubled Array
- - 2006. Count Number of Pairs With Absolute Difference K
- - 2003. Smallest Missing Genetic Value in Each Subtree
- - 2002. Maximum Product of the Length of Two Palindromic Subsequences
- - 2001. Number of Pairs of Interchangeable Rectangles
- - 2000. Reverse Prefix of Word
- - 1999. Smallest Greater Multiple Made of Two Digits
- - 1998. GCD Sort of an Array
- - 1997. First Day Where You Have Been in All the Rooms
- - 1996. The Number of Weak Characters in the Game
- - 1995. Count Special Quadruplets
- - 1994. The Number of Good Subsets
- - 1993. Operations on Tree
- - 1992. Find All Groups of Farmland
- - 1991. Find the Middle Index in Array
- - 1989. Maximum Number of People That Can Be Caught in Tag
- - 1987. Number of Unique Good Subsequences
- - 1986. Minimum Number of Work Sessions to Finish the Tasks
- - 1985. Find the Kth Largest Integer in the Array
- - 1984. Minimum Difference Between Highest and Lowest of K Scores
- - 1983. Widest Pair of Indices With Equal Range Sum
- - 1982. Find Array Given Subset Sums
- - 1981. Minimize the Difference Between Target and Chosen Elements
- - 1980. Find Unique Binary String
- - 1979. Find Greatest Common Divisor of Array
- - 1977. Number of Ways to Separate Numbers
- - 1976. Number of Ways to Arrive at Destination
- - 1975. Maximum Matrix Sum
- - 1974. Minimum Time to Type Word Using Special Typewriter
- - 1973. Count Nodes Equal to Sum of Descendants
- - 1971. Find if Path Exists in Graph
- - 1970. Last Day Where You Can Still Cross
- - 1969. Minimum Non-Zero Product of the Array Elements
- - 1968. Array With Elements Not Equal to Average of Neighbors
- - 1967. Number of Strings That Appear as Substrings in Word
- - 1966. Binary Searchable Numbers in an Unsorted Array
- - 1964. Find the Longest Valid Obstacle Course at Each Position
- - 1963. Minimum Number of Swaps to Make the String Balanced
- - 1962. Remove Stones to Minimize the Total
- - 1961. Check If String Is a Prefix of Array
- - 1959. Minimum Total Space Wasted With K Resizing Operations
- - 1958. Check if Move is Legal
- - 1957. Delete Characters to Make Fancy String
- - 1955. Count Number of Special Subsequences
- - 1954. Minimum Garden Perimeter to Collect Enough Apples
- - 1953. Maximum Number of Weeks for Which You Can Work
- - 1952. Three Divisors
- - 1950. Maximum of Minimum Values in All Subarrays
- - 1947. Maximum Compatibility Score Sum
- - 1946. Largest Number After Mutating Substring
- - 1945. Sum of Digits of String After Convert
- - 1944. Number of Visible People in a Queue
- - 1943. Describe the Painting
- - 1942. The Number of the Smallest Unoccupied Chair
- - 1941. Check if All Characters Have Equal Number of Occurrences
- - 1940. Longest Common Subsequence Between Sorted Arrays
- - 1937. Maximum Number of Points with Cost
- - 1936. Add Minimum Number of Rungs
- - 1935. Maximum Number of Words You Can Type
- - 1933. Check if String Is Decomposable Into Value-Equal Substrings
- - 1931. Painting a Grid With Three Different Colors
- - 1929. Concatenation of Array
- - 1927. Sum Game
- - 1926. Nearest Exit from Entrance in Maze
- - 1923. Longest Common Subpath
- - 1922. Count Good Numbers
- - 1921. Eliminate Maximum Number of Monsters
- - 1918. Kth Smallest Subarray Sum
- - 1915. Number of Wonderful Substrings
- - 1914. Cyclically Rotating a Grid
- - 1912. Design Movie Rental System
- - 1911. Maximum Alternating Subsequence Sum
- - 1910. Remove All Occurrences of a Substring
- - 1908. Game of Nim
- - 1906. Minimum Absolute Difference Queries
- - 1905. Count Sub Islands
- - 1904. The Number of Full Rounds You Have Played
- - 1902. Depth of BST Given Insertion Order
- - 1901. Find a Peak Element II
- - 1900. The Earliest and Latest Rounds Where Players Compete
- - 1899. Merge Triplets to Form Target Triplet
- - 1898. Maximum Number of Removable Characters
- - 1895. Largest Magic Square
- - 1894. Find the Student that Will Replace the Chalk
- - 1891. Cutting Ribbons
- - 1889. Minimum Space Wasted From Packaging
- - 1888. Minimum Number of Flips to Make the Binary String Alternating
- - 1885. Count Pairs in Two Arrays
- - 1883. Minimum Skips to Arrive at Meeting On Time
- - 1882. Process Tasks Using Servers
- - 1881. Maximum Value after Insertion
- - 1879. Minimum XOR Sum of Two Arrays
- - 1878. Get Biggest Three Rhombus Sums in a Grid
- - 1877. Minimize Maximum Pair Sum in Array
- - 1874. Minimize Product Sum of Two Arrays
- - 1872. Stone Game VIII
- - 1871. Jump Game VII
- - 1870. Minimum Speed to Arrive on Time
- - 1868. Product of Two Run-Length Encoded Arrays
- - 1866. Number of Ways to Rearrange Sticks With K Sticks Visible
- - 1865. Finding Pairs With a Certain Sum
- - 1864. Minimum Number of Swaps to Make the Binary String Alternating
- - 1862. Sum of Floored Pairs
- - 1861. Rotating the Box
- - 1860. Incremental Memory Leak
- - 1858. Longest Word With All Prefixes
- - 1857. Largest Color Value in a Directed Graph
- - 1856. Maximum Subarray Min-Product
- - 1855. Maximum Distance Between a Pair of Values
- - 1852. Distinct Numbers in Each Subarray
- - 1851. Minimum Interval to Include Each Query
- - 1850. Minimum Adjacent Swaps to Reach the Kth Smallest Number
- - 1849. Splitting a String Into Descending Consecutive Values
- - 1847. Closest Room
- - 1846. Maximum Element After Decreasing and Rearranging
- - 1845. Seat Reservation Manager
- - 1842. Next Palindrome Using Same Digits
- - 1840. Maximum Building Height
- - 1839. Longest Substring Of All Vowels in Order
- - 1838. Frequency of the Most Frequent Element
- - 1836. Remove Duplicates From an Unsorted Linked List
- - 1835. Find XOR Sum of All Pairs Bitwise AND
- - 1834. Single-Threaded CPU
- - 1833. Maximum Ice Cream Bars
- - 1830. Minimum Number of Operations to Make String Sorted
- - 1829. Maximum XOR for Each Query
- - 1828. Queries on Number of Points Inside a Circle
- - 1826. Faulty Sensor
- - 1825. Finding MK Average
- - 1824. Minimum Sideway Jumps
- - 1823. Find the Winner of the Circular Game
- - 1822. Sign of the Product of an Array
- - 1820. Maximum Number of Accepted Invitations
- - 1819. Number of Different Subsequences GCDs
- - 1818. Minimum Absolute Sum Difference
- - 1817. Finding the Users Active Minutes
- - 1816. Truncate Sentence
- - 1815. Maximum Number of Groups Getting Fresh Donuts
- - 1814. Count Nice Pairs in an Array
- - 1813. Sentence Similarity III
- - 1812. Determine Color of a Chessboard Square
- - 1810. Minimum Path Cost in a Hidden Grid
- - 1808. Maximize Number of Nice Divisors
- - 1807. Evaluate the Bracket Pairs of a String
- - 1806. Minimum Number of Operations to Reinitialize a Permutation
- - 1805. Number of Different Integers in a String
- - 1804. Implement Trie II (Prefix Tree)
- - 1803. Count Pairs With XOR in a Range
- - 1802. Maximum Value at a Given Index in a Bounded Array
- - 1801. Number of Orders in the Backlog
- - 1800. Maximum Ascending Subarray Sum
- - 1799. Maximize Score After N Operations
- - 1798. Maximum Number of Consecutive Values You Can Make
- - 1797. Design Authentication Manager
- - 1796. Second Largest Digit in a String
- - 1794. Count Pairs of Equal Substrings With Minimum Difference
- - 1793. Maximum Score of a Good Subarray
- - 1792. Maximum Average Pass Ratio
- - 1791. Find Center of Star Graph
- - 1790. Check if One String Swap Can Make Strings Equal
- - 1788. Maximize the Beauty of the Garden
- - 1787. Make the XOR of All Segments Equal to Zero
- - 1786. Number of Restricted Paths From First to Last Node
- - 1785. Minimum Elements to Add to Form a Given Sum
- - 1784. Check if Binary String Has at Most One Segment of Ones
- - 1782. Count Pairs Of Nodes
- - 1781. Sum of Beauty of All Substrings
- - 1780. Check if Number is a Sum of Powers of Three
- - 1779. Find Nearest Point That Has the Same X or Y Coordinate
- - 1778. Shortest Path in a Hidden Grid
- - 1776. Car Fleet II
- - 1775. Equal Sum Arrays With Minimum Number of Operations
- - 1774. Closest Dessert Cost
- - 1773. Count Items Matching a Rule
- - 1772. Sort Features by Popularity
- - 1771. Maximize Palindrome Length From Subsequences
- - 1770. Maximum Score from Performing Multiplication Operations
- - 1769. Minimum Number of Operations to Move All Balls to Each Box
- - 1766. Tree of Coprimes
- - 1765. Map of Highest Peak
- - 1764. Form Array by Concatenating Subarrays of Another Array
- - 1763. Longest Nice Substring
- - 1762. Buildings With an Ocean View
- - 1761. Minimum Degree of a Connected Trio in a Graph
- - 1760. Minimum Limit of Balls in a Bag
- - 1759. Count Number of Homogenous Substrings
- - 1758. Minimum Changes To Make Alternating Binary String
- - 1757. Recyclable and Low Fat Products
- - 1756. Design Most Recently Used Queue
- - 1755. Closest Subsequence Sum
- - 1754. Largest Merge Of Two Strings
- - 1753. Maximum Score From Removing Stones
- - 1752. Check if Array Is Sorted and Rotated
- - 1751. Maximum Number of Events That Can Be Attended II
- - 1750. Minimum Length of String After Deleting Similar Ends
- - 1749. Maximum Absolute Sum of Any Subarray
- - 1748. Sum of Unique Elements
- - 1746. Maximum Subarray Sum After One Operation
- - 1745. Palindrome Partitioning IV
- - 1744. Can You Eat Your Favorite Candy on Your Favorite Day
- - 1743. Restore the Array From Adjacent Pairs
- - 1742. Maximum Number of Balls in a Box
- - 1740. Find Distance in a Binary Tree
- - 1739. Building Boxes
- - 1738. Find Kth Largest XOR Coordinate Value
- - 1737. Change Minimum Characters to Satisfy One of Three Conditions
- - 1736. Latest Time by Replacing Hidden Digits
- - 1735. Count Ways to Make Array With Product
- - 1734. Decode XORed Permutation
- - 1733. Minimum Number of People to Teach
- - 1730. Shortest Path to Get Food
- - 1728. Cat and Mouse II
- - 1727. Largest Submatrix With Rearrangements
- - 1726. Tuple with Same Product
- - 1725. Number Of Rectangles That Can Form The Largest Square
- - 1724. Checking Existence of Edge Length Limited Paths II
- - 1723. Find Minimum Time to Finish All Jobs
- - 1722. Minimize Hamming Distance After Swap Operations
- - 1721. Swapping Nodes in a Linked List
- - 1720. Decode XORed Array
- - 1719. Number Of Ways To Reconstruct A Tree
- - 1718. Construct the Lexicographically Largest Valid Sequence
- - 1717. Maximum Score From Removing Substrings
- - 1716. Calculate Money in Leetcode Bank
- - 1714. Sum Of Special Evenly-Spaced Elements In Array
- - 1713. Minimum Operations to Make a Subsequence
- - 1712. Ways to Split Array Into Three Subarrays
- - 1711. Count Good Meals
- - 1710. Maximum Units on a Truck
- - 1708. Largest Subarray Length K
- - 1707. Maximum XOR With an Element From Array
- - 1706. Where Will the Ball Fall
- - 1705. Maximum Number of Eaten Apples
- - 1704. Determine if String Halves Are Alike
- - 1703. Minimum Adjacent Swaps for K Consecutive Ones
- - 1702. Maximum Binary String After Change
- - 1701. Average Waiting Time
- - 1700. Number of Students Unable to Eat Lunch
- - 1698. Number of Distinct Substrings in a String
- - 1697. Checking Existence of Edge Length Limited Paths
- - 1696. Jump Game VI
- - 1695. Maximum Erasure Value
- - 1694. Reformat Phone Number
- - 1692. Count Ways to Distribute Candies
- - 1691. Maximum Height by Stacking Cuboids
- - 1690. Stone Game VII
- - 1689. Partitioning Into Minimum Number Of Deci-Binary Numbers
- - 1688. Count of Matches in Tournament
- - 1687. Delivering Boxes from Storage to Ports
- - 1686. Stone Game VI
- - 1685. Sum of Absolute Differences in a Sorted Array
- - 1684. Count the Number of Consistent Strings
- - 1682. Longest Palindromic Subsequence II
- - 1681. Minimum Incompatibility
- - 1680. Concatenation of Consecutive Binary Numbers
- - 1678. Goal Parser Interpretation
- - 1676. Lowest Common Ancestor of a Binary Tree IV
- - 1675. Minimize Deviation in Array
- - 1674. Minimum Moves to Make Array Complementary
- - 1673. Find the Most Competitive Subsequence
- - 1672. Richest Customer Wealth
- - 1671. Minimum Number of Removals to Make Mountain Array
- - 1670. Design Front Middle Back Queue
- - 1668. Maximum Repeating Substring
- - 1666. Change the Root of a Binary Tree
- - 1665. Minimum Initial Energy to Finish Tasks
- - 1664. Ways to Make a Fair Array
- - 1663. Smallest String With A Given Numeric Value
- - 1662. Check If Two String Arrays are Equivalent
- - 1660. Correct a Binary Tree
- - 1659. Maximize Grid Happiness
- - 1656. Design an Ordered Stream
- - 1655. Distribute Repeating Integers
- - 1654. Minimum Jumps to Reach Home
- - 1653. Minimum Deletions to Make String Balanced
- - 1652. Defuse the Bomb
- - 1650. Lowest Common Ancestor of a Binary Tree III
- - 1649. Create Sorted Array through Instructions
- - 1648. Sell Diminishing-Valued Colored Balls
- - 1646. Get Maximum in Generated Array
- - 1644. Lowest Common Ancestor of a Binary Tree II
- - 1643. Kth Smallest Instructions
- - 1642. Furthest Building You Can Reach
- - 1641. Count Sorted Vowel Strings
- - 1640. Check Array Formation Through Concatenation
- - 1639. Number of Ways to Form a Target String Given a Dictionary
- - 1638. Count Substrings That Differ by One Character
- - 1637. Widest Vertical Area Between Two Points Containing No Points
- - 1636. Sort Array by Increasing Frequency
- - 1634. Add Two Polynomials Represented as Linked Lists
- - 1632. Rank Transform of a Matrix
- - 1631. Path With Minimum Effort
- - 1630. Arithmetic Subarrays
- - 1629. Slowest Key
- - 1628. Design an Expression Tree With Evaluate Function
- - 1627. Graph Connectivity With Threshold
- - 1626. Best Team With No Conflicts
- - 1625. Lexicographically Smallest String After Applying Operations
- - 1624. Largest Substring Between Two Equal Characters
- - 1622. Fancy Sequence
- - 1621. Number of Sets of K Non-Overlapping Line Segments
- - 1620. Coordinate With Maximum Network Quality
- - 1619. Mean of Array After Removing Some Elements
- - 1618. Maximum Font to Fit a Sentence in a Screen
- - 1617. Count Subtrees With Max Distance Between Cities
- - 1616. Split Two Strings to Make Palindrome
- - 1615. Maximal Network Rank
- - 1612. Check If Two Expression Trees are Equivalent
- - 1611. Minimum One Bit Operations to Make Integers Zero
- - 1610. Maximum Number of Visible Points
- - 1609. Even Odd Tree
- - 1608. Special Array With X Elements Greater Than or Equal X
- - 1606. Find Servers That Handled Most Number of Requests
- - 1605. Find Valid Matrix Given Row and Column Sums
- - 1604. Alert Using Same Key-Card Three or More Times in a One Hour Period
- - 1603. Design Parking System
- - 1602. Find Nearest Right Node in Binary Tree
- - 1601. Maximum Number of Achievable Transfer Requests
- - 1600. Throne Inheritance
- - 1599. Maximum Profit of Operating a Centennial Wheel
- - 1598. Crawler Log Folder
- - 1595. Minimum Cost to Connect Two Groups of Points
- - 1594. Maximum Non Negative Product in a Matrix
- - 1593. Split a String Into the Max Number of Unique Substrings
- - 1592. Rearrange Spaces Between Words
- - 1590. Make Sum Divisible by P
- - 1589. Maximum Sum Obtained of Any Permutation
- - 1588. Sum of All Odd Length Subarrays
- - 1586. Binary Search Tree Iterator II
- - 1585. Check If String Is Transformable With Substring Sort Operations
- - 1584. Min Cost to Connect All Points
- - 1583. Count Unhappy Friends
- - 1582. Special Positions in a Binary Matrix
- - 1580. Put Boxes Into the Warehouse II
- - 1578. Minimum Time to Make Rope Colorful
- - 1577. Number of Ways Where Square of Number Is Equal to Product of Two Numbers
- - 1576. Replace All 's to Avoid Consecutive Repeating Characters
- - 1574. Shortest Subarray to be Removed to Make Array Sorted
- - 1573. Number of Ways to Split a String
- - 1572. Matrix Diagonal Sum
- - 1570. Dot Product of Two Sparse Vectors
- - 1567. Maximum Length of Subarray With Positive Product
- - 1566. Detect Pattern of Length M Repeated K or More Times
- - 1564. Put Boxes Into the Warehouse I
- - 1562. Find Latest Group of Size M
- - 1561. Maximum Number of Coins You Can Get
- - 1560. Most Visited Sector in a Circular Track
- - 1558. Minimum Numbers of Function Calls to Make Target Array
- - 1557. Minimum Number of Vertices to Reach All Nodes
- - 1556. Thousand Separator
- - 1554. Strings Differ by One Character
- - 1552. Magnetic Force Between Two Balls
- - 1551. Minimum Operations to Make Array Equal
- - 1550. Three Consecutive Odds
- - 1546. Maximum Number of Non-Overlapping Subarrays With Sum Equals Target
- - 1545. Find Kth Bit in Nth Binary String
- - 1544. Make The String Great
- - 1541. Minimum Insertions to Balance a Parentheses String
- - 1540. Can Convert String in K Moves
- - 1539. Kth Missing Positive Number
- - 1538. Guess the Majority in a Hidden Array
- - 1536. Minimum Swaps to Arrange a Binary Grid
- - 1535. Find the Winner of an Array Game
- - 1534. Count Good Triplets
- - 1533. Find the Index of the Large Integer
- - 1530. Number of Good Leaf Nodes Pairs
- - 1529. Minimum Suffix Flips
- - 1528. Shuffle String
- - 1525. Number of Good Ways to Split a String
- - 1524. Number of Sub-arrays With Odd Sum
- - 1523. Count Odd Numbers in an Interval Range
- - 1522. Diameter of N-Ary Tree
- - 1519. Number of Nodes in the Sub-Tree With the Same Label
- - 1518. Water Bottles
- - 1514. Path with Maximum Probability
- - 1512. Number of Good Pairs
- - 1509. Minimum Difference Between Largest and Smallest Value in Three Moves
- - 1508. Range Sum of Sorted Subarray Sums
- - 1507. Reformat Date
- - 1506. Find Root of N-Ary Tree
- - 1504. Count Submatrices With All Ones
- - 1503. Last Moment Before All Ants Fall Out of a Plank
- - 1502. Can Make Arithmetic Progression From Sequence
- - 1500. Design a File Sharing System
- - 1498. Number of Subsequences That Satisfy the Given Sum Condition
- - 1497. Check If Array Pairs Are Divisible by k
- - 1496. Path Crossing
- - 1492. The kth Factor of n
- - 1491. Average Salary Excluding the Minimum and Maximum Salary
- - 1490. Clone N-ary Tree
- - 1488. Avoid Flood in The City
- - 1487. Making File Names Unique
- - 1486. XOR Operation in an Array
- - 1485. Clone Binary Tree With Random Pointer
- - 1482. Minimum Number of Days to Make m Bouquets
- - 1481. Least Number of Unique Integers after K Removals
- - 1477. Find Two Non-overlapping Sub-arrays Each With Target Sum
- - 1476. Subrectangle Queries
- - 1475. Final Prices With a Special Discount in a Shop
- - 1474. Delete N Nodes After M Nodes of a Linked List
- - 1472. Design Browser History
- - 1471. The k Strongest Values in an Array
- - 1470. Shuffle the Array
- - 1469. Find All The Lonely Nodes
- - 1466. Reorder Routes to Make All Paths Lead to the City Zero
- - 1465. Maximum Area of a Piece of Cake After Horizontal and Vertical Cuts
- - 1464. Maximum Product of Two Elements in an Array
- - 1462. Course Schedule IV
- - 1461. Check If a String Contains All Binary Codes of Size K
- - 1460. Make Two Arrays Equal by Reversing Subarrays
- - 1457. Pseudo-Palindromic Paths in a Binary Tree
- - 1455. Check If a Word Occurs As a Prefix of Any Word in a Sentence
- - 1452. People Whose List of Favorite Companies Is Not a Subset of Another List
- - 1451. Rearrange Words in a Sentence
- - 1450. Number of Students Doing Homework at a Given Time
- - 1446. Consecutive Characters
- - 1436. Destination City
- - 1427. Perform String Shifts
- - 1426. Counting Elements
- - 1422. Maximum Score After Splitting a String
- - 1417. Reformat The String
- - 1413. Minimum Value to Get Positive Step by Step Sum
- - 1408. String Matching in an Array
- - 1403. Minimum Subsequence in Non-Increasing Order
- - 1399. Count Largest Group
- - 1394. Find Lucky Integer in an Array
- - 1389. Create Target Array in the Given Order
- - 1385. Find the Distance Value Between Two Arrays
- - 1380. Lucky Numbers in a Matrix
- - 1379. Find a Corresponding Node of a Binary Tree in a Clone of That Tree
- - 1374. Generate a String With Characters That Have Odd Counts
- - 1370. Increasing Decreasing String
- - 1365. How Many Numbers Are Smaller Than the Current Number
- - 1360. Number of Days Between Two Dates
- - 1351. Count Negative Numbers in a Sorted Matrix
- - 1346. Check If N and Its Double Exist
- - 1342. Number of Steps to Reduce a Number to Zero
- - 1337. The K Weakest Rows in a Matrix
- - 1332. Remove Palindromic Subsequences
- - 1331. Rank Transform of an Array
- - 1317. Convert Integer to the Sum of Two No-Zero Integers
- - 1313. Decompress Run-Length Encoded List
- - 1309. Decrypt String from Alphabet to Integer Mapping
- - 1304. Find N Unique Integers Sum up to Zero
- - 1299. Replace Elements with Greatest Element on Right Side
- - 1295. Find Numbers with Even Number of Digits
- - 1290. Convert Binary Number in a Linked List to Integer
- - 1281. Subtract the Product and Sum of Digits of an Integer
- - 1279. Traffic Light Controlled Intersection
- - 1275. Find Winner on a Tic Tac Toe Game
- - 1271. Hexspeak
- - 1266. Minimum Time Visiting All Points
- - 1252. Cells with Odd Values in a Matrix
- - 1249. Minimum Remove to Make Valid Parentheses
- - 1243. Array Transformation
- - 1232. Check If It Is a Straight Line
- - 1228. Missing Number In Arithmetic Progression
- - 1221. Split a String in Balanced Strings
- - 1217. Minimum Cost to Move Chips to The Same Position
- - 1213. Intersection of Three Sorted Arrays
- - 1200. Minimum Absolute Difference
- - 1196. How Many Apples Can You Put into the Basket
- - 1189. Maximum Number of Balloons
- - 1185. Day of the Week
- - 1184. Distance Between Bus Stops
- - 1180. Count Substrings with Only One Distinct Letter
- - 1176. Diet Plan Performance
- - 1175. Prime Arrangements
- - 1171. Remove Zero Sum Consecutive Nodes from Linked List
- - 1165. Single-Row Keyboard
- - 1162. As Far from Land as Possible
- - 1160. Find Words That Can Be Formed by Characters
- - 1154. Day of the Year
- - 1152. Analyze User Website Visit Pattern
- - 1150. Check If a Number Is Majority Element in a Sorted Array
- - 1138. Alphabet Board Path
- - 1137. N-th Tribonacci Number
- - 1134. Armstrong Number
- - 1133. Largest Unique Number
- - 1128. Number of Equivalent Domino Pairs
- - 1122. Relative Sort Array
- - 1119. Remove Vowels from a String
- - 1118. Number of Days in a Month
- - 1114. Print in Order
- - 1108. Defanging an IP Address
- - 1103. Distribute Candies to People
- - 1099. Two Sum Less Than K
- - 1089. Duplicate Zeros
- - 1086. High Five
- - 1085. Sum of Digits in the Minimum Number
- - 1078. Occurrences After Bigram
- - 1065. Index Pairs of a String
- - 1064. Fixed Point
- - 1056. Confusing Number
- - 1051. Height Checker
- - 1047. Remove All Adjacent Duplicates In String
- - 1046. Last Stone Weight
- - 992. Subarrays with K Different Integers
- - 970. Powerful Integers
- - 969. Pancake Sorting
- - 967. Numbers With Same Consecutive Differences
- - 966. Vowel Spellchecker
- - 963. Minimum Area Rectangle II
- - 962. Maximum Width Ramp
- - 959. Regions Cut By Slashes
- - 958. Check Completeness of a Binary Tree
- - 954. Array of Doubled Pairs
- - 951. Flip Equivalent Binary Trees
- - 950. Reveal Cards In Increasing Order
- - 949. Largest Time for Given Digits
- - 948. Bag of Tokens
- - 935. Knight Dialer
- - 934. Shortest Bridge
- - 932. Beautiful Array
- - 931. Minimum Falling Path Sum
- - 930. Binary Subarrays With Sum
- - 926. Flip String to Monotone Increasing
- - 791. Custom Sort String
- - 623. Add One Row to Tree
- - 442. Find All Duplicates in an Array
- - 251. Flatten 2D Vector
- - 240. Search a 2D Matrix II
- - 136. Single Number
- - 58. Length of Last Word
- - 57. Insert Interval
- - 41. First Missing Positive
2023
- - 1431. Kids With the Greatest Number of Candies
- - 1887. Reduction Operations to Make the Array Elements Equal
- - 343. Integer Break
- - 229. Majority Element II
- - 389. Find the Difference
- - 799. Champagne Tower
- - 2251. Number of Flowers in Full Bloom
- - 1048. Longest String Chain
- - 1420. Build Array Where You Can Find The Maximum Exactly K Comparisons
- - 1658. Minimum Operations to Reduce X to Zero
- - 287. Find the Duplicate Number
- - 847. Shortest Path Visiting All Nodes
- - 2856. Minimum Array Length After Pair Removals
- - 880. Decoded String at Index
- - 332. Reconstruct Itinerary
- - 1647. Minimum Deletions to Make Character Frequencies Unique
- - 2849. Determine if a Cell Is Reachable at a Given Time
- - 2848. Points That Intersect With Cars
- - 1372. Longest ZigZag Path in a Binary Tree
- - 1359. Count All Valid Pickup and Delivery Options
- - 377. Combination Sum IV
- - 118. Pascal's Triangle
- - 92. Reverse Linked List II
- - 1282. Group the People Given the Group Size They Belong To
- - 725. Split Linked List in Parts
- - 206. Reverse Linked List
- - 104. Maximum Depth of Binary Tree
- - 2844. Minimum Operations to Make a Special Number
- - 2841. Maximum Sum of Almost Unique Subarray
- - 2840. Check if Strings Can be Made Equal With Operations II
- - 2839. Check if Strings Can be Made Equal With Operations I
- - 2130. Maximum Twin Sum of a Linked List
- - 2095. Delete the Middle Node of a Linked List
- - 933. Number of Recent Calls
- - 649. Dota2 Senate
- - 621. Task Scheduler
- - 605. Can Place Flowers
- - 341. Flatten Nested List Iterator
- - 1679. Max Number of K-Sum Pairs
- - 1448. Count Good Nodes in Binary Tree
- - 454. 4Sum II
- - 437. Path Sum III
- - 387. First Unique Character in a String
- - 384. Shuffle an Array
- - 328. Odd Even Linked List
- - 300. Longest Increasing Subsequence
- - 277. Find the Celebrity
- - 251. Flatten 2D Vector
- - 240. Search a 2D Matrix II
- - 237. Delete Node in a Linked List
- - 236. Lowest Common Ancestor of a Binary Tree
- - 215. Kth Largest Element in an Array
- - 210. Course Schedule II
- - 42. Trapping Rain Water
- - 4. Median of Two Sorted Arrays
- - 9. Palindrome Number
- - 2390. Removing Stars From a String
- - 2352. Equal Row and Column Pairs
- - 735. Asteroid Collision
- - 1657. Determine if Two Strings Are Close
- - 1207. Unique Number of Occurrences
- - 2215. Find the Difference of Two Arrays
- - 1732. Find the Highest Altitude
- - 724. Find Pivot Index
- - 1493. Longest Subarray of 1's After Deleting One Element
- - 1004. Max Consecutive Ones III
- - 394. Decode String
- - 151. Reverse Words in a String
- - 1456. Maximum Number of Vowels in a Substring of Given Length
- - 643. Maximum Average Subarray I
- - 443. String Compression
- - 392. Is Subsequence
- - 345. Reverse Vowels of a String
- - 283. Move Zeroes
- - 334. Increasing Triplet Subsequence
- - 238. Product of Array Except Self
- - LeetCode Top 75
- - 1768. Merge Strings Alternately
- - 1071. Greatest Common Divisor of Strings
- - 189. Rotate Array
- - 166. Fraction to Recurring Decimal
- - 234. Palindrome Linked List
- - 152. Maximum Product Subarray
- - 191. Number of 1 Bits
- - 202. Happy Number
- - 190. Reverse Bits
- - 171. Excel Sheet Column Number
- - 148. Sort List
- - 160. Intersection of Two Linked Lists
- - 141. Linked List Cycle
- - 146. LRU Cache
- - 139. Word Break
- - 138. Copy List with Random Pointer
- - 134. Gas Station
- - Round #867/1822 (Div. 3)
- - 8. String to Integer (atoi)
- - 1773F - Football - 800
- - 1777B - Emordnilap - 900
- - 1787A - Exponential Equation - 800
- - 1777A - Everybody Likes Good Arrays! - 800
- - 131. Palindrome Partitioning
- - 130. Surrounded Regions
- - 128. Longest Consecutive Sequence
- - 1796B - One and Two - 800
- - 1772A - A+B? - 800
- - 122. Best Time to Buy and Sell Stock II
- - 116. Populating Next Right Pointers in Each Node
- - 1778A - Flip Flop Sum - 800
- - 1788A - One and Two - 800
- - 1799A - Recent Actions - 800
- - 1798A - Showstopper - 800
- - 1807C - Find and Replace - 800
- - 1807B - Grab the Candies - 800
- - 1807A - Plus or Minus - 800
- - Plan
- - 1809A - Garland - 800
- - 78. Subsets
- - 75. Sort Colors
- - Segment Tree
- - Binary Tree
- - Python template for contests
- - Round #849/1791 (Div. 4)
- - 73. Set Matrix Zeroes
- - 62. Unique Paths
2022
- - Short description from article
- - 56. Merge Intervals
- - 55. Jump Game
- - 53. Maximum Subarray
- - 50. Pow(x, n)
- - 49. Group Anagrams
- - 48. Rotate Image
- - 46. Permutations
- - 38. Count and Say
- - 36. Valid Sudoku
- - 34. Find First and Last Position of Element in Sorted Array
- - 33. Search in Rotated Sorted Array
- - 29. Divide Two Integers
- - 28. Find the Index of the First Occurrence in a String
- - 22. Generate Parentheses
- - 19. Remove Nth Node From End of List
- - 17. Letter Combinations of a Phone Number
- - 15. 3Sum
- - 11. Container With Most Water
- - 7. Reverse Integer
- - 94. Binary Tree Inorder Traversal
- - 88. Merge Sorted Array
- - 70. Climbing Stairs
- - 69. Sqrt(x)
- - 66. Plus One
- - 26. Remove Duplicates from Sorted Array
- - 21. Merge Two Sorted Lists
- - 20. Valid Parentheses
- - 14. Longest Common Prefix
- - 5. Longest Palindromic Substring
- - 13. Roman to Integer
- - 3. Longest Substring Without Repeating Characters
- - 2. Add Two Numbers
- - 1. Two Sum
- - Algorithms
- - Plan
- - Step Functions
- - EventBridge
- - Route 53
- - Cognito
- - Elastic Kubernetes Service
- - Fargate
- - Elastic Container Service
- - Elastic Container Registry
- - Fault Injection Simulator
- - X-Ray
- - CodeArtifact
- - CodePipeline
- - CodeBuild
- - CodeDeploy
- - API Gateway
- - RDS
- - ElastiCache
- - Lambda
- - Delete S3 Bucket
- - Change metadata of S3 Object
- - Grant public access to S3 Object
- - Upload a file to S3
- - Create a folder inside S3 Bucket
- - Create S3 Bucket
- - Elastic Beanstalk
- - EC2
- - IAM
- - Questions
- - Sessionizing Clickstream Data with Amazon Kinesis Data Analytics
- - Process Amazon SNS Notifications with AWS Lambda
- - Introduction to CodeCommit
- - Introduction to CloudWatch
- - Initializing Amazon EC2 Instances with AWS CloudFormation Init
- - Fan-Out Orders using Amazon SNS and SQS
- - Encrypting S3 Objects Using SSE-KMS
- - Develop and Deploy an Application with AWS CodeStar
- - Create Classic Load Balancer
- - Build A Log Aggregation System in AWS
- - Automating Code Reviews with Amazon CodeGuru
- - Introduction to DynamoDB
- - Configuring a Static Website With S3 And CloudFront