Master DSA Topics - January, 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
1036 Find Followers Count Easy
Database
1037 Find Good Days to Rob the Bank Medium
ArrayDynamic ProgrammingPrefix Sum
1038 Find Greatest Common Divisor of Array Easy
ArrayMathNumber Theory
1039 Find if Array Can Be Sorted Medium
ArrayBit ManipulationSorting
1040 Find if Digit Game Can Be Won Easy
ArrayMath
1041 Find if Path Exists in Graph Easy
Depth-First SearchBreadth-First SearchUnion Find
1042 Find in Mountain Array Hard
ArrayBinary SearchInteractive
1043 Find Indices of Stable Mountains Easy
Array
1044 Find Indices With Index and Value Difference I Easy
ArrayTwo Pointers
1045 Find Indices With Index and Value Difference II Medium
ArrayTwo Pointers
1046 Find Interview Candidates Medium
Database
1047 Find Invalid IP Addresses Hard
Database
1048 Find K Closest Elements Medium
ArrayTwo PointersBinary Search
1049 Find K-Length Substrings With No Repeated Characters Medium
Hash TableStringSliding Window
1050 Find K Pairs with Smallest Sums Medium
ArrayHeap (Priority Queue)
Showing 1036-1050 of 3600
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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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