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
2955 Number of Same-End Substrings Medium
ArrayHash TableString
2956 Find Common Elements Between Two Arrays Easy
ArrayHash Table
2957 Remove Adjacent Almost-Equal Characters Medium
StringDynamic ProgrammingGreedy
2958 Length of Longest Subarray With at Most K Frequency Medium
ArrayHash TableSliding Window
2959 Number of Possible Sets of Closing Branches Hard
Bit ManipulationGraphHeap (Priority Queue)
2960 Count Tested Devices After Test Operations Easy
ArraySimulationCounting
2961 Double Modular Exponentiation Medium
ArrayMathSimulation
2962 Count Subarrays Where Max Element Appears at Least K Times Medium
ArraySliding Window
2963 Count the Number of Good Partitions Hard
ArrayHash TableMath
2964 Minimum Cost to Make Array Equalindromic Medium
ArrayMathBinary Search
2964 Number of Divisible Triplet Sums Medium
ArrayHash Table
2965 Find Missing and Repeated Values Easy
ArrayHash TableMath
2966 Divide Array Into Arrays With Max Difference Medium
ArrayGreedySorting
2968 Apply Operations to Maximize Frequency Score Hard
ArrayBinary SearchSliding Window
2969 Minimum Number of Coins for Fruits II Hard
ArrayDynamic ProgrammingQueue
Showing 2956-2970 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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