Matrix Coding Problems

2D array manipulation and algorithms

260
Total Problems
38
Easy
152
Medium
68
Hard
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Master DSA Topics - January, 2026

Practice problems across 75+ categories

Matrix Coding Problems

Practice problems frequently asked at Matrix 260 problems | 38 Easy | 152 Medium | 68 Hard

# Problem Difficulty Topics
151 Minimum Moves to Clean the Classroom Medium
ArrayHash TableBit Manipulation
152 Minimum Moves to Move a Box to Their Target Location Hard
ArrayBreadth-First SearchHeap (Priority Queue)
153 Minimum Moves to Reach Target with Rotations Hard
ArrayBreadth-First SearchMatrix
154 Minimum Moves to Spread Stones Over Grid Medium
ArrayDynamic ProgrammingBreadth-First Search
155 Minimum Number of Days to Disconnect Island Hard
ArrayDepth-First SearchBreadth-First Search
156 Minimum Number of Flips to Convert Binary Matrix to Zero Matrix Hard
ArrayHash TableBit Manipulation
157 Minimum Number of Flips to Make Binary Grid Palindromic I Medium
ArrayTwo PointersMatrix
158 Minimum Number of Flips to Make Binary Grid Palindromic II Medium
ArrayTwo PointersMatrix
159 Minimum Number of Operations to Satisfy Conditions Medium
ArrayDynamic ProgrammingMatrix
160 Minimum Number of Visited Cells in a Grid Hard
ArrayDynamic ProgrammingStack
161 Minimum Obstacle Removal to Reach Corner Hard
ArrayBreadth-First SearchGraph
162 Minimum Operations to Make a Uni-Value Grid Medium
ArrayMathSorting
163 Minimum Operations to Make Columns Strictly Increasing Easy
ArrayGreedyMatrix
164 Minimum Operations to Remove Adjacent Ones in Matrix Hard
ArrayGraphMatrix
165 Minimum Operations to Write the Letter Y on a Grid Medium
ArrayHash TableMatrix
Showing 151-165 of 260
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public class MyFirstJavaProgram { Edit & Run

   /* This is my first java program.
    * This will print 'Hello, World!' as the output
    */

   public static void main(String []args) {
      System.out.println("Hello, World!"); // prints
   }
}

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