Master DSA Topics - April, 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
181 Best Time to Buy and Sell Stock V Medium
ArrayDynamic Programming
182 Best Time to Buy and Sell Stock with Cooldown Medium
ArrayDynamic Programming
183 Best Time to Buy and Sell Stock with Transaction Fee Medium
ArrayDynamic ProgrammingGreedy
184 Better Compression of String Medium
Hash TableStringSorting
185 BFS Traversal Medium
GraphsGraphQueue
186 Big Countries Easy
Database
187 Biggest Single Number Easy
Database
188 Biggest Window Between Visits Medium
Database
189 Bikes Last Time Used Easy
Database
190 Binary Gap Easy
Bit Manipulation
191 Binary Number with Alternating Bits Easy
Bit Manipulation
192 Binary Prefix Divisible By 5 Easy
ArrayBit Manipulation
193 Binary Search Easy
ArrayBinary Search
194 Binary Search Tree Medium
TreesBSTRecursion
195 Binary Search Tree Iterator Medium
StackTreeDesign
Showing 181-195 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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