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
2731 Remove Adjacent Almost-Equal Characters Medium
StringDynamic ProgrammingGreedy
2732 Remove All Adjacent Duplicates In String Easy
StringStack
2733 Remove All Adjacent Duplicates in String II Medium
StringStack
2734 Remove All Occurrences of a Substring Medium
StringStackSimulation
2735 Remove All Ones With Row and Column Flips Medium
ArrayMathBit Manipulation
2736 Remove All Ones With Row and Column Flips II Medium
ArrayBit ManipulationBreadth-First Search
2737 Remove Boxes Hard
ArrayDynamic ProgrammingMemoization
2738 Remove Colored Pieces if Both Neighbors are the Same Color Medium
MathStringGreedy
2739 Remove Comments Medium
ArrayString
2740 Remove Covered Intervals Medium
ArraySorting
2741 Remove Digit From Number to Maximize Result Easy
StringGreedyEnumeration
2742 Remove Duplicate Letters Medium
StringStackGreedy
2743 Remove Duplicates From an Unsorted Linked List Medium
Hash TableLinked List
2744 Remove Duplicates from Sorted Array Easy
ArrayTwo Pointers
2745 Remove Duplicates from Sorted Array II Medium
ArrayTwo Pointers
Showing 2731-2745 of 3399
1 ... 181 182 183 184 185 ... 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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