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
1875 Group Employees of the Same Salary Medium
Database
1876 Substrings of Size Three with Distinct Characters Easy
Hash TableStringSliding Window
1877 Minimize Maximum Pair Sum in Array Medium
ArrayTwo PointersGreedy
1878 Get Biggest Three Rhombus Sums in a Grid Medium
ArrayMathSorting
1879 Minimum XOR Sum of Two Arrays Hard
ArrayDynamic ProgrammingBit Manipulation
1880 Check if Word Equals Summation of Two Words Easy
String
1881 Maximum Value after Insertion Medium
StringGreedy
1882 Process Tasks Using Servers Medium
ArrayHeap (Priority Queue)
1883 Minimum Skips to Arrive at Meeting On Time Hard
ArrayDynamic Programming
1884 Egg Drop With 2 Eggs and N Floors Medium
MathDynamic Programming
1885 Count Pairs in Two Arrays Medium
ArrayTwo PointersBinary Search
1886 Determine Whether Matrix Can Be Obtained By Rotation Easy
ArrayMatrix
1887 Reduction Operations to Make the Array Elements Equal Medium
ArraySorting
1888 Minimum Number of Flips to Make the Binary String Alternating Medium
StringDynamic ProgrammingSliding Window
1889 Minimum Space Wasted From Packaging Hard
ArrayBinary SearchSorting
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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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