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
691 Count the Number of K-Big Indices Hard
ArrayBinary SearchDivide and Conquer
692 Count the Number of K-Free Subsets Medium
ArrayMathDynamic Programming
693 Count the Number of Powerful Integers Hard
MathStringDynamic Programming
694 Count the Number of Special Characters I Easy
Hash TableString
695 Count the Number of Special Characters II Medium
Hash TableString
696 Count the Number of Square-Free Subsets Medium
ArrayMathDynamic Programming
697 Count the Number of Substrings With Dominant Ones Medium
StringEnumeration
698 Count the Number of Vowel Strings in Range Easy
ArrayStringCounting
699 Count The Number of Winning Sequences Hard
StringDynamic Programming
700 Count The Repetitions Hard
StringDynamic Programming
701 Count Total Number of Colored Cells Medium
Math
702 Count Triplets That Can Form Two Arrays of Equal XOR Medium
ArrayHash TableMath
703 Count Triplets with Even XOR Set Bits I Easy
ArrayBit Manipulation
704 Count Triplets with Even XOR Set Bits II Medium
ArrayBit Manipulation
705 Count Unguarded Cells in the Grid Medium
ArrayMatrixSimulation
Showing 691-705 of 3911
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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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