Master DSA Topics - April, 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
2761 Number of Steps to Reduce a Number to Zero Easy
MathBit Manipulation
2762 Number of Strings That Appear as Substrings in Word Easy
ArrayString
2763 Number of Strings Which Can Be Rearranged to Contain Substring Medium
MathDynamic ProgrammingCombinatorics
2764 Number of Students Doing Homework at a Given Time Easy
Array
2765 Number of Students Unable to Eat Lunch Easy
ArrayStackQueue
2766 Number of Sub-arrays of Size K and Average Greater than or Equal to Threshold Medium
ArraySliding Window
2767 Number of Sub-arrays With Odd Sum Medium
ArrayMathDynamic Programming
2768 Number of Subarrays Having Even Product Medium
ArrayMathDynamic Programming
2769 Number of Subarrays That Match a Pattern I Medium
ArrayRolling HashString Matching
2770 Number of Subarrays That Match a Pattern II Hard
ArrayRolling HashString Matching
2771 Number of Subarrays With AND Value of K Hard
ArrayBinary SearchBit Manipulation
2772 Number of Subarrays with Bounded Maximum Medium
ArrayTwo Pointers
2773 Number of Subarrays With GCD Equal to K Medium
ArrayMathNumber Theory
2774 Number of Subarrays With LCM Equal to K Medium
ArrayMathNumber Theory
2775 Number of Submatrices That Sum to Target Hard
ArrayHash TableMatrix
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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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