## Evaluate Reverse Polish Notation in Javascript

Input: [“3”, “1”, “+”, “5”, “*”] Output: 9 Explanation: ((3 + 1) * 5) = 20 Algorithm: The key thing to realize in this to use stack as a data structure for the solution....

Input: [“3”, “1”, “+”, “5”, “*”] Output: 9 Explanation: ((3 + 1) * 5) = 20 Algorithm: The key thing to realize in this to use stack as a data structure for the solution....

Problem : Implement queue’s enqueue and dequeue operations using two stacks. Logic: The queue is first-in-first-out and a stack is last in-first-out phenomena. Hence, the main difference between these two data structures is that...

Problem : Sort the given stack into an ascending order without using recursion. Logic: Pop an item from the original stack and push it onto the sorted stack. If the poped item from the...

Problem : The Towers of Hanoi is a classic puzzle with 3 pegs and multiple disks of different sizes. The goal of the puzzle is to move all the disks from the first peg...

You are given an array of strings. Each of these strings is made up of bracket characters only : ‘(‘, ‘)’, ‘{‘, ‘}’, ‘[‘, ‘]’. Programming languages utilize these brackets in balanced pairs, so...

Problem description : Create a stack data structure in javascript. Stack organizes data into the sequential order. It similar to the stack of books in a library or stack of dishes in the kitchen...