Master DSA Topics - February, 2026

Practice problems across 75+ categories

All Coding Problems

Practice coding problems across all companies and topics 3600 problems | 879 Easy | 1856 Medium | 842 Hard

# Problem Difficulty Topics
3105 Longest Strictly Increasing or Strictly Decreasing Subarray Easy
Array
3106 Lexicographically Smallest String After Operations With Constraint Medium
StringGreedy
3107 Minimum Operations to Make Median of Array Equal to K Medium
ArrayGreedySorting
3108 Minimum Cost Walk in Weighted Graph Hard
ArrayBit ManipulationUnion Find
3109 Find the Index of Permutation Medium
ArrayBinary SearchDivide and Conquer
3110 Score of a String Easy
String
3111 Minimum Rectangles to Cover Points Medium
ArrayGreedySorting
3112 Minimum Time to Visit Disappearing Nodes Medium
ArrayGraphHeap (Priority Queue)
3113 Find the Number of Subarrays Where Boundary Elements Are Maximum Hard
ArrayBinary SearchStack
3114 Latest Time You Can Obtain After Replacing Characters Easy
StringEnumeration
3115 Maximum Prime Difference Medium
ArrayMathNumber Theory
3116 Kth Smallest Amount With Single Denomination Combination Hard
ArrayMathBinary Search
3117 Minimum Sum of Values by Dividing Array Hard
ArrayBinary SearchDynamic Programming
3118 Friday Purchase III Medium
Database
3119 Maximum Number of Potholes That Can Be Fixed Medium
StringGreedySorting
Showing 3106-3120 of 3602
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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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