Amazon Coding Problems

Practice Amazon's top coding challenges and algorithms

3399
Total Problems
851
Easy
1772
Medium
756
Hard
Start Practicing

Master DSA Topics - January, 2026

Practice problems across 75+ categories

Amazon Coding Problems

Practice problems frequently asked at Amazon 3399 problems | 851 Easy | 1772 Medium | 756 Hard

# Problem Difficulty Topics
586 Count the Number of Computer Unlocking Permutations Medium
ArrayMathBrainteaser
587 Count the Number of Consistent Strings Easy
ArrayHash TableString
588 Count the Number of Experiments Medium
Database
589 Count the Number of Fair Pairs Medium
ArrayTwo PointersBinary Search
590 Count the Number of Good Nodes Medium
TreeDepth-First Search
591 Count the Number of Good Partitions Hard
ArrayHash TableMath
592 Count the Number of Good Subarrays Medium
ArrayHash TableSliding Window
593 Count the Number of Good Subsequences Medium
Hash TableMathString
594 Count the Number of Houses at a Certain Distance I Medium
Breadth-First SearchGraphPrefix Sum
595 Count the Number of Houses at a Certain Distance II Hard
GraphPrefix Sum
596 Count the Number of Ideal Arrays Hard
MathDynamic ProgrammingCombinatorics
597 Count the Number of Incremovable Subarrays I Easy
ArrayTwo PointersBinary Search
598 Count the Number of Incremovable Subarrays II Hard
ArrayTwo PointersBinary Search
599 Count the Number of Infection Sequences Hard
ArrayMathCombinatorics
600 Count the Number of Inversions Hard
ArrayDynamic Programming
Showing 586-600 of 3399
1 ... 38 39 40 41 42 ... 227

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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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