Practice problems across 75+ categories
Practice coding problems across all companies and topics • 3600 problems | 879 Easy | 1856 Medium | 842 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 3135 | Equalize Strings by Adding or Removing Characters at Ends | Medium | StringBinary SearchDynamic Programming |
| 3136 | Valid Word | Easy | String |
| 3137 | Minimum Number of Operations to Make Word K-Periodic | Medium | Hash TableStringCounting |
| 3138 | Minimum Length of Anagram Concatenation | Medium | Hash TableStringCounting |
| 3139 | Minimum Cost to Equalize Array | Hard | ArrayGreedyEnumeration |
| 3140 | Consecutive Available Seats II | Medium | Database |
| 3141 | Maximum Hamming Distances | Hard | ArrayBit ManipulationBreadth-First Search |
| 3142 | Check if Grid Satisfies Conditions | Easy | ArrayMatrix |
| 3142 | Find Products of Elements of Big Array | Hard | ArrayBinary SearchBit Manipulation |
| 3143 | Maximum Points Inside the Square | Medium | ArrayHash TableString |
| 3144 | Minimum Substring Partition of Equal Character Frequency | Medium | Hash TableStringDynamic Programming |
| 3145 | Maximum Difference Score in a Grid | Medium | ArrayDynamic ProgrammingMatrix |
| 3146 | Permutation Difference between Two Strings | Easy | Hash TableString |
| 3147 | Taking Maximum Energy From the Mystic Dungeon | Medium | ArrayPrefix Sum |
| 3149 | Find the Minimum Cost Array Permutation | Hard | ArrayDynamic ProgrammingBit Manipulation |
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