Stack Coding Problems

LIFO data structure operations

172
Total Problems
23
Easy
97
Medium
51
Hard
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Master DSA Topics - January, 2026

Practice problems across 75+ categories

Stack Coding Problems

Practice problems frequently asked at Stack 172 problems | 23 Easy | 97 Medium | 51 Hard

# Problem Difficulty Topics
46 Design Browser History Medium
ArrayLinked ListStack
47 Design Video Sharing Platform Hard
Hash TableStackDesign
48 Dinner Plate Stacks Hard
Hash TableStackDesign
49 Double a Number Represented as a Linked List Medium
Linked ListMathStack
50 Evaluate Reverse Polish Notation Medium
ArrayMathStack
51 Exclusive Time of Functions Medium
ArrayStack
52 Final Prices With a Special Discount in a Shop Easy
ArrayStackMonotonic Stack
53 Find Building Where Alice and Bob Can Meet Hard
ArrayBinary SearchStack
54 Find Maximum Non-decreasing Array Length Hard
ArrayBinary SearchDynamic Programming
55 Find Mirror Score of a String Medium
Hash TableStringStack
56 Find Permutation Medium
ArrayStringStack
57 Find Sorted Submatrices With Maximum Element at Most K Hard
ArrayStackMatrix
58 Find the Most Competitive Subsequence Medium
ArrayStackGreedy
59 Find the Number of Subarrays Where Boundary Elements Are Maximum Hard
ArrayBinary SearchStack
60 Finding the Number of Visible Mountains Medium
ArrayStackSorting
Showing 46-60 of 172
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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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