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
1576 Leetcodify Similar Friends Hard
Database
1577 Leetflex Banned Accounts Medium
Database
1578 Left and Right Sum Differences Easy
ArrayPrefix Sum
1579 Leftmost Column with at Least a One Medium
ArrayBinary SearchMatrix
1580 Lemonade Change Easy
ArrayGreedy
1581 Length of Last Word Easy
String
1582 Length of Longest Fibonacci Subsequence Medium
ArrayHash TableDynamic Programming
1583 Length of Longest Subarray With at Most K Frequency Medium
ArrayHash TableSliding Window
1584 Length of Longest V-Shaped Diagonal Segment Hard
ArrayDynamic ProgrammingMemoization
1585 Length of the Longest Alphabetical Continuous Substring Medium
String
1586 Length of the Longest Increasing Path Hard
ArrayBinary SearchSorting
1587 Length of the Longest Subsequence That Sums to Target Medium
ArrayDynamic Programming
1588 Length of the Longest Valid Substring Hard
ArrayHash TableString
1589 Letter Case Permutation Medium
StringBacktrackingBit Manipulation
1590 Letter Combinations of a Phone Number Medium
Hash TableStringBacktracking
Showing 1576-1590 of 3600
1 ... 104 105 106 107 108 ... 240

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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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