Stack & Queue

Stack & Queue: Implement stack & queue, LRU Cache, Check for balanced parentheses, Next Greater Element, Next Smaller Element, Rotten Orange (Using BFS), The Celebrity Problem etc.
Implementation of Stack data structure using Array

Posted on Mar 31, 2024

Implementation of Queue data structure using Array

Posted on Mar 31, 2024

Implement Stack using Queue (using single queue)

Posted on Mar 31, 2024

Implement Queue using Stack in amortized O(1) time

Posted on Mar 31, 2024

Find the next greater element for every element in an array

Posted on Mar 31, 2024

Find the next greater element for every element in a circular array

Posted on Mar 31, 2024