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
3121 Shortest Subarray with Sum at Least K Hard
ArrayBinary SearchQueue
3122 Shortest Uncommon Substring in an Array Medium
ArrayHash TableString
3123 Shortest Unsorted Continuous Subarray Medium
ArrayTwo PointersStack
3124 Shortest Way to Form String Medium
Two PointersStringBinary Search
3125 Shortest Word Distance Easy
ArrayString
3126 Shortest Word Distance II Medium
ArrayHash TableTwo Pointers
3127 Shortest Word Distance III Easy
ArrayString
3128 Shuffle an Array Medium
ArrayMathDesign
3129 Shuffle String Easy
ArrayString
3130 Shuffle the Array Easy
Array
3131 Sign of the Product of an Array Easy
ArrayMath
3132 Similar RGB Color Easy
MathStringEnumeration
3133 Similar String Groups Hard
ArrayHash TableString
3134 Simple Bank System Medium
ArrayHash TableDesign
3135 Simplified Fractions Medium
MathStringNumber Theory
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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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