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
2146 Minimum Number of Operations to Make Array Empty Medium
ArrayHash TableGreedy
2147 Minimum Number of Operations to Make Array XOR Equal to K Medium
ArrayBit Manipulation
2148 Minimum Number of Operations to Make Arrays Similar Hard
ArrayGreedySorting
2149 Minimum Number of Operations to Make Elements in Array Distinct Easy
ArrayHash Table
2150 Minimum Number of Operations to Make String Sorted Hard
MathStringCombinatorics
2151 Minimum Number of Operations to Make Word K-Periodic Medium
Hash TableStringCounting
2152 Minimum Number of Operations to Make X and Y Equal Medium
Dynamic ProgrammingBreadth-First SearchMemoization
2153 Minimum Number of Operations to Move All Balls to Each Box Medium
ArrayStringPrefix Sum
2154 Minimum Number of Operations to Reinitialize a Permutation Medium
ArrayMathSimulation
2155 Minimum Number of Operations to Satisfy Conditions Medium
ArrayDynamic ProgrammingMatrix
2156 Minimum Number of Operations to Sort a Binary Tree by Level Medium
TreeBreadth-First SearchBinary Tree
2157 Minimum Number of People to Teach Medium
ArrayHash TableGreedy
2158 Minimum Number of Pushes to Type Word I Easy
MathStringGreedy
2159 Minimum Number of Pushes to Type Word II Medium
Hash TableStringGreedy
2160 Minimum Number of Refueling Stops Hard
ArrayDynamic ProgrammingGreedy
Showing 2146-2160 of 3399
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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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