Problems

3,947+ problems · 946 Easy · 2062 Medium · 939 Hard

Active:EasyPremium· 128 results

Title	Solution	Practice	Difficulty	Companies	Topics
157. Read N Characters Given Read4	Solution	Solve	Easy	Apple+3	Array Interactive+1
163. Missing Ranges	Solution	Solve	Easy	Apple+2	Array
170. Two Sum III - Data structure design	Solution	Solve	Easy	Amazon+1	Array Data Stream+3
243. Shortest Word Distance	Solution	Solve	Easy	Amazon+7	Array String
246. Strobogrammatic Number	Solution	Solve	Easy	Google+2	Hash Table String+1
252. Meeting Rooms	Solution	Solve	Easy	Amazon+9	Array Sorting
266. Palindrome Permutation	Solution	Solve	Easy	Apple+7	Bit Manipulation Hash Table+1
270. Closest Binary Search Tree Value	Solution	Solve	Easy	Amazon+8	Binary Search Binary Search Tree+3
293. Flip Game	Solution	Solve	Easy	Google	String
346. Moving Average from Data Stream	Solution	Solve	Easy	Amazon+8	Array Data Stream+2
359. Logger Rate Limiter	Solution	Solve	Easy	Amazon+18	Data Stream Design+1
408. Valid Word Abbreviation	Solution	Solve	Easy	Amazon+7	String Two Pointers
422. Valid Word Square	Solution	Solve	Easy	Apple+1	Array Matrix
512. Game Play Analysis II	Solution	Solve	Easy	Amazon+1	Database
597. Friend Requests I: Overall Acceptance Rate	Solution	Solve	Easy	Meta	Database
603. Consecutive Available Seats	Solution	Solve	Easy	-	Database
604. Design Compressed String Iterator	Solution	Solve	Easy	Google	Array Design+2
613. Shortest Distance in a Line	Solution	Solve	Easy	-	Database
734. Sentence Similarity	Solution	Solve	Easy	Google	Array Hash Table+1
760. Find Anagram Mappings	Solution	Solve	Easy	Google	Array Hash Table
800. Similar RGB Color	Solution	Solve	Easy	Google	Enumeration Math+1
1056. Confusing Number	Solution	Solve	Easy	Google	Math
1064. Fixed Point	Solution	Solve	Easy	Uber	Array Binary Search
1065. Index Pairs of a String	Solution	Solve	Easy	Amazon	Array Sorting+2
1069. Product Sales Analysis II	Solution	Solve	Easy	Amazon	Database
1076. Project Employees II	Solution	Solve	Easy	Meta	Database
1082. Sales Analysis I	Solution	Solve	Easy	Amazon	Database
1083. Sales Analysis II	Solution	Solve	Easy	Amazon	Database
1085. Sum of Digits in the Minimum Number	Solution	Solve	Easy	Amazon	Array Math
1086. High Five	Solution	Solve	Easy	Amazon+1	Array Hash Table+2
1099. Two Sum Less Than K	Solution	Solve	Easy	Amazon	Array Binary Search+2
1113. Reported Posts	Solution	Solve	Easy	Meta	Database
1118. Number of Days in a Month	Solution	Solve	Easy	Amazon	Math
1119. Remove Vowels from a String	Solution	Solve	Easy	Amazon	String
1133. Largest Unique Number	Solution	Solve	Easy	Amazon	Array Hash Table+1
1134. Armstrong Number	Solution	Solve	Easy	Amazon	Math
1142. User Activity for the Past 30 Days II	Solution	Solve	Easy	Meta+1	Database
1150. Check If a Number Is Majority Element in a Sorted Array	Solution	Solve	Easy	Salesforce	Array Binary Search
1165. Single-Row Keyboard	Solution	Solve	Easy	Google	Hash Table String
1173. Immediate Food Delivery I	Solution	Solve	Easy	DoorDash	Database
1176. Diet Plan Performance	Solution	Solve	Easy	Amazon	Array Sliding Window
1180. Count Substrings with Only One Distinct Letter	Solution	Solve	Easy	Virtu Financial	Math String
1196. How Many Apples Can You Put into the Basket	Solution	Solve	Easy	Virtu Financial	Array Greedy+1
1213. Intersection of Three Sorted Arrays	Solution	Solve	Easy	Apple+1	Array Binary Search+2
1228. Missing Number In Arithmetic Progression	Solution	Solve	Easy	Audible	Array Math
1241. Number of Comments per Post	Solution	Solve	Easy	Meta	Database
1243. Array Transformation	Solution	Solve	Easy	Virtu Financial	Array Simulation
1271. Hexspeak	Solution	Solve	Easy	Virtu Financial	Math String
1279. Traffic Light Controlled Intersection	Solution	Solve	Easy	Amazon	Concurrency
1294. Weather Type in Each Country	Solution	Solve	Easy	Point72	Database