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Queue Coding Problems

FIFO data structure operations

50
Total Problems
7
Easy
23
Medium
20
Hard
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Master DSA Topics - January, 2026

Practice problems across 75+ categories

Queue Coding Problems

Practice problems frequently asked at Queue • 50 problems | 7 Easy | 23 Medium | 20 Hard

3407Google
3399Amazon
3344Microsoft
2900Meta
571Apple
275Facebook
51Netflix
31Uber
27LinkedIn
17Twitter
15Spotify
14Bloomberg
12Adobe
12Airbnb
11Instagram
9DoorDash
9Lyft
8Goldman Sachs
8Oracle
8ByteDance
# Problem Difficulty Topics
46 Sliding Window Maximum Hard
ArrayQueueSliding Window
47 Stamping The Sequence Hard
StringStackGreedy
48 Time Needed to Buy Tickets Easy
ArrayQueueSimulation
49 Time Taken to Cross the Door Hard
ArrayQueueSimulation
50 Zigzag Iterator Medium
ArrayDesignQueue
Showing 46-50 of 50
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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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