Master DSA Topics - March, 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
1216 Find Sum of Array Product of Magical Sequences Hard
ArrayMathDynamic Programming
1217 Find Target Indices After Sorting Array Easy
ArrayBinary SearchSorting
1218 Find the Array Concatenation Value Easy
ArrayTwo PointersSimulation
1219 Find the Celebrity Medium
Two PointersGraphInteractive
1220 Find the Child Who Has the Ball After K Seconds Easy
MathSimulation
1221 Find the City With the Smallest Number of Neighbors at a Threshold Distance Medium
Dynamic ProgrammingGraphShortest Path
1222 Find the Closest Marked Node Medium
ArrayGraphHeap (Priority Queue)
1223 Find the Closest Palindrome Hard
MathString
1224 Find the Count of Good Integers Hard
Hash TableMathCombinatorics
1225 Find the Count of Monotonic Pairs I Hard
ArrayMathDynamic Programming
1226 Find the Count of Monotonic Pairs II Hard
ArrayMathDynamic Programming
1227 Find the Count of Numbers Which Are Not Special Medium
ArrayMathNumber Theory
1228 Find the Derangement of An Array Medium
MathDynamic ProgrammingCombinatorics
1229 Find the Difference Easy
Hash TableStringBit Manipulation
1230 Find the Difference of Two Arrays Easy
ArrayHash Table
Showing 1216-1230 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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