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
1515 Best Position for a Service Centre Hard
ArrayMathGeometry
1516 Move Sub-Tree of N-Ary Tree Hard
TreeDepth-First Search
1517 Find Users With Valid E-Mails Easy
Database
1518 Water Bottles Easy
MathSimulation
1519 Number of Nodes in the Sub-Tree With the Same Label Medium
Hash TableTreeDepth-First Search
1520 Maximum Number of Non-Overlapping Substrings Hard
StringGreedy
1521 Find a Value of a Mysterious Function Closest to Target Hard
ArrayBinary SearchBit Manipulation
1522 Diameter of N-Ary Tree Medium
TreeDepth-First Search
1523 Count Odd Numbers in an Interval Range Easy
Math
1524 Number of Sub-arrays With Odd Sum Medium
ArrayMathDynamic Programming
1525 Number of Good Ways to Split a String Medium
Hash TableStringDynamic Programming
1526 Minimum Number of Increments on Subarrays to Form a Target Array Hard
ArrayDynamic ProgrammingStack
1527 Patients With a Condition Easy
Database
1528 Shuffle String Easy
ArrayString
1529 Minimum Suffix Flips Medium
StringGreedy
Showing 1516-1530 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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