Problems

3,848+ problems · 928 Easy · 2014 Medium · 906 Hard

Title	Solution	Practice	Difficulty	Companies	Topics
3051. Find Candidates for Data Scientist Position	Solution	Solve	Easy	Hashedin	Database
3052. Maximize Items	Solution	Solve	Hard	Hashedin	Database
3053. Classifying Triangles by Lengths	Solution	Solve	Easy	Aon	Database
3054. Binary Tree Nodes	Solution	Solve	Medium	Google	Database
3055. Top Percentile Fraud	Solution	Solve	Medium	-	Database
3056. Snaps Analysis	Solution	Solve	Medium	-	Database
3057. Employees Project Allocation	Solution	Solve	Hard	-	Database
3058. Friends With No Mutual Friends	Solution	Solve	Medium	-	Database
3059. Find All Unique Email Domains	Solution	Solve	Easy	-	Database
3060. User Activities within Time Bounds	Solution	Solve	Hard	-	Database
3061. Calculate Trapping Rain Water	Solution	Solve	Hard	-	Database
3062. Winner of the Linked List Game	Solution	Solve	Easy	-	Linked List
3063. Linked List Frequency	Solution	Solve	Easy	-	Counting Hash Table+1
3064. Guess the Number Using Bitwise Questions I	Solution	Solve	Medium	-	Bit Manipulation Interactive
3065. Minimum Operations to Exceed Threshold Value I	Solution	Solve	Easy	TCS	Array
3066. Minimum Operations to Exceed Threshold Value II	Solution	Solve	Medium	Amazon+3	Array Heap (Priority Queue)+1
3067. Count Pairs of Connectable Servers in a Weighted Tree Network	Solution	Solve	Medium	Thoughtspot+1	Array Depth-First Search+1
3068. Find the Maximum Sum of Node Values	Solution	Solve	Hard	BlackRock+3	Array Bit Manipulation+4
3069. Distribute Elements Into Two Arrays I	Solution	Solve	Easy	Amazon+1	Array Simulation
3070. Count Submatrices with Top-Left Element and Sum Less Than k	Solution	Solve	Medium	Barclays	Array Matrix+1
3071. Minimum Operations to Write the Letter Y on a Grid	Solution	Solve	Medium	Amazon+7	Array Counting+2
3072. Distribute Elements Into Two Arrays II	Solution	Solve	Hard	Autodesk	Array Binary Indexed Tree+2
3073. Maximum Increasing Triplet Value	Solution	Solve	Medium	Uber	Array Ordered Set
3074. Apple Redistribution into Boxes	Solution	Solve	Easy	Apple+2	Array Greedy+1
3075. Maximize Happiness of Selected Children	Solution	Solve	Medium	Amazon+2	Array Greedy+1
3076. Shortest Uncommon Substring in an Array	Solution	Solve	Medium	Affirm+3	Array Hash Table+2
3077. Maximum Strength of K Disjoint Subarrays	Solution	Solve	Hard	Amazon+1	Array Dynamic Programming+1
3078. Match Alphanumerical Pattern in Matrix I	Solution	Solve	Medium	Uber+1	Array Hash Table+2
3079. Find the Sum of Encrypted Integers	Solution	Solve	Easy	Larsen Toubro	Array Math
3080. Mark Elements on Array by Performing Queries	Solution	Solve	Medium	Barclays+1	Array Hash Table+3
3081. Replace Question Marks in String to Minimize Its Value	Solution	Solve	Medium	Amazon	Counting Greedy+4
3082. Find the Sum of the Power of All Subsequences	Solution	Solve	Hard	De Shaw+1	Array Dynamic Programming
3083. Existence of a Substring in a String and Its Reverse	Solution	Solve	Easy	Rubrik	Hash Table String
3084. Count Substrings Starting and Ending with Given Character	Solution	Solve	Medium	-	Counting Math+1
3085. Minimum Deletions to Make String K-Special	Solution	Solve	Medium	Bloomberg+2	Counting Greedy+3
3086. Minimum Moves to Pick K Ones	Solution	Solve	Hard	Tiktok	Array Greedy+2
3087. Find Trending Hashtags	Solution	Solve	Medium	-	Database
3088. Make String Anti-palindrome	Solution	Solve	Hard	Intuit	Counting Sort Greedy+2
3089. Find Bursty Behavior	Solution	Solve	Medium	-	Database
3090. Maximum Length Substring With Two Occurrences	Solution	Solve	Easy	Amazon+2	Hash Table Sliding Window+1
3091. Apply Operations to Make Sum of Array Greater Than or Equal to k	Solution	Solve	Medium	Turing+1	Enumeration Greedy+1
3092. Most Frequent IDs	Solution	Solve	Medium	Amazon+1	Array Hash Table+2
3093. Longest Common Suffix Queries	Solution	Solve	Hard	Google	Array String+1
3094. Guess the Number Using Bitwise Questions II	Solution	Solve	Medium	-	Bit Manipulation Interactive
3095. Shortest Subarray With OR at Least K I	Solution	Solve	Easy	Mitsogo	Array Bit Manipulation+1
3096. Minimum Levels to Gain More Points	Solution	Solve	Medium	IBM	Array Prefix Sum
3097. Shortest Subarray With OR at Least K II	Solution	Solve	Medium	Amazon+4	Array Bit Manipulation+1
3098. Find the Sum of Subsequence Powers	Solution	Solve	Hard	Rubrik	Array Dynamic Programming+1
3099. Harshad Number	Solution	Solve	Easy	Google+1	Math
3100. Water Bottles II	Solution	Solve	Medium	Amazon+2	Math Simulation