Category - Stack

Python Algorithm – Iterative Postorder Traversal | Set 1 (Using Two Stacks)

Python Algorithm - Iterative Postorder Traversal | Set 1 (Using Two Stacks) - Stack - We have discussed iterative inorder and iterative preorder traversals.

C Algorithm – Iterative Postorder Traversal | Set 1 (Using Two Stacks)

C Algorithm - Iterative Postorder Traversal | Set 1 (Using Two Stacks) - Stack - We have discussed iterative inorder and iterative preorder traversals

Java Algorithm – Iterative Postorder Traversal | Set 2 (Using One Stack)

Java Algorithm - Iterative Postorder Traversal | Set 2 (Using One Stack) - Stack - We have discussed a simple iterative postorder traversal using two stacks

Python Algorithm – Iterative Postorder Traversal | Set 2 (Using One Stack)

Python Algorithm - Iterative Postorder Traversal | Set 2 (Using One Stack) - Stack - We have discussed a simple iterative postorder traversal

C Algorithm – Iterative Postorder Traversal | Set 2 (Using One Stack)

C Algorithm - Iterative Postorder Traversal | Set 2 (Using One Stack) - Stack - We have discussed a simple iterative postorder traversal using two stacks

The Celebrity Problem

The Celebrity Problem - Stack - In a party of N people, only one person is known to everyone. Such a person may be present in the party, if yes

Largest Rectangular Area in a Histogram | Set 2

Largest Rectangular Area in a Histogram | Set 2 - Stack - Find the largest rectangular area possible in a given histogram where the largest rectangle

Expression Evaluation

Expression Evaluation - Stack -Evaluate an expression represented by a String. Expression can contain parentheses, you can assume parentheses

Print ancestors of a given binary tree node without recursion

Print ancestors of a given binary tree node without recursion - Stack - Given a Binary Tree and a key, write a function that prints all the ancestors

Python Algorithm – Length of the longest valid substring

Python Algorithm - Length of the longest valid substring - Stack - Given a string consisting of opening and closing parenthesis