Easy
Reverse String Using a Stack
Updated: Jul 18, 2025Easy
Understanding Stack
Updated: Jul 18, 2025Easy
Implement Stack using Queue
Updated: Jul 18, 2025Easy
Balanced Brackets in an Expression
Updated: Jul 18, 2025Easy
Next Greater Element
Updated: Jul 18, 2025Medium
Next Greater Element - 2
Updated: Jul 18, 2025Medium
Asteroid Collision
Updated: Jul 18, 2025Medium
Sum of Subarray Minimums
Updated: Jul 18, 2025Medium
Sum of Subarray Ranges
Updated: Jul 18, 2025Medium
Remove K Digits
Updated: Jul 18, 2025Hard
Implement Min Stack
Updated: Jul 18, 2025Hard