Practice problems across 75+ categories
Practice problems frequently asked at Array • 1947 problems | 398 Easy | 1049 Medium | 497 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 151 | Check if it is Possible to Split Array | Medium | ArrayDynamic ProgrammingGreedy |
| 152 | Check if Matrix Is X-Matrix | Easy | ArrayMatrix |
| 153 | Check if Move is Legal | Medium | ArrayMatrixEnumeration |
| 154 | Check If N and Its Double Exist | Easy | ArrayHash TableTwo Pointers |
| 155 | Check If String Is a Prefix of Array | Easy | ArrayTwo PointersString |
| 156 | Check if the Rectangle Corner Is Reachable | Hard | ArrayMathDepth-First Search |
| 157 | Check if There is a Path With Equal Number of 0's And 1's | Medium | ArrayDynamic ProgrammingMatrix |
| 158 | Check if There Is a Valid Parentheses String Path | Hard | ArrayDynamic ProgrammingMatrix |
| 159 | Check if There is a Valid Partition For The Array | Medium | ArrayDynamic Programming |
| 160 | Check if There is a Valid Path in a Grid | Medium | ArrayDepth-First SearchBreadth-First Search |
| 161 | Check If Two String Arrays are Equivalent | Easy | ArrayString |
| 162 | Check if Word Can Be Placed In Crossword | Medium | ArrayMatrixEnumeration |
| 163 | Check Knight Tour Configuration | Medium | ArrayDepth-First SearchBreadth-First Search |
| 164 | Checking Existence of Edge Length Limited Paths | Hard | ArrayTwo PointersUnion Find |
| 165 | Cherry Pickup | Hard | ArrayDynamic ProgrammingMatrix |
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