Practice problems across 75+ categories
Practice coding problems across all companies and topics • 3600 problems | 879 Easy | 1856 Medium | 842 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 3120 | Count the Number of Special Characters I | Easy | Hash TableString |
| 3121 | Count the Number of Special Characters II | Medium | Hash TableString |
| 3122 | Minimum Number of Operations to Satisfy Conditions | Medium | ArrayDynamic ProgrammingMatrix |
| 3123 | Find Edges in Shortest Paths | Hard | Depth-First SearchBreadth-First SearchGraph |
| 3124 | Find Longest Calls | Medium | Database |
| 3125 | Maximum Number That Makes Result of Bitwise AND Zero | Medium | StringGreedySorting |
| 3126 | Server Utilization Time | Medium | Database |
| 3127 | Find All Possible Stable Binary Arrays II | Hard | Dynamic ProgrammingPrefix Sum |
| 3127 | Make a Square with the Same Color | Easy | ArrayMatrixEnumeration |
| 3128 | Right Triangles | Medium | ArrayHash TableMath |
| 3129 | Find All Possible Stable Binary Arrays I | Medium | Dynamic ProgrammingPrefix Sum |
| 3131 | Find the Integer Added to Array I | Easy | Array |
| 3132 | Find the Integer Added to Array II | Medium | ArrayTwo PointersSorting |
| 3133 | Minimum Array End | Medium | Bit Manipulation |
| 3134 | Find the Median of the Uniqueness Array | Hard | ArrayHash TableBinary Search |
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