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
2161 Minimum Number of Removals to Make Mountain Array Hard
ArrayBinary SearchDynamic Programming
2162 Minimum Number of Seconds to Make Mountain Height Zero Medium
ArrayMathBinary Search
2163 Minimum Number of Steps to Make Two Strings Anagram Medium
Hash TableStringCounting
2164 Minimum Number of Steps to Make Two Strings Anagram II Medium
Hash TableStringCounting
2165 Minimum Number of Swaps to Make the Binary String Alternating Medium
StringGreedy
2166 Minimum Number of Swaps to Make the String Balanced Medium
Two PointersStringStack
2167 Minimum Number of Taps to Open to Water a Garden Hard
ArrayDynamic ProgrammingGreedy
2168 Minimum Number of Valid Strings to Form Target II Hard
ArrayStringBinary Search
2169 Minimum Number of Vertices to Reach All Nodes Medium
Graph
2170 Minimum Number of Visited Cells in a Grid Hard
ArrayDynamic ProgrammingStack
2171 Minimum Number of Work Sessions to Finish the Tasks Medium
ArrayDynamic ProgrammingBacktracking
2172 Minimum Numbers of Function Calls to Make Target Array Medium
ArrayGreedyBit Manipulation
2173 Minimum Obstacle Removal to Reach Corner Hard
ArrayBreadth-First SearchGraph
2174 Minimum One Bit Operations to Make Integers Zero Hard
Dynamic ProgrammingBit ManipulationMemoization
2175 Minimum Operations to Collect Elements Easy
ArrayHash TableBit Manipulation
Showing 2161-2175 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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