Given a postfix expression Containing only operators [+, – , *, / ] and numbers. Postfix expression is given the
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Evaluation of Prefix expression
Problem Statement: Evaluation of prefix expression step by step. Examples: Example 1: Input: * 5 4 Output: 20 Explanation: Refer
Continue readingInfix to Prefix
Problem Statement: Given an infix expression, Your task is to convert the given infix expression to a prefix expression. Examples:
Continue readingInfix to Postfix
Problem Statement: Given an infix expression, Your task is to convert the given infix expression to a postfix expression. Examples:
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What is a stack? Stack is a linear data structure in which elements are stored in a certain order. It
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What is Stack? A stack is a non-primitive linear data structure. it is an ordered list in which the addition
Continue readingPost-Order Traversal Of Binary Tree
Problem Statement: Postorder Traversal of a binary tree. Write a program for the postorder traversal of a binary tree. Example: Disclaimer:
Continue readingArea of largest rectangle in Histogram
Problem Statement: Given an array of integers heights representing the histogram’s bar height where the width of each bar is
Continue readingImplement Queue using Stack
Problem Statement: Given a Stack having some elements stored in it. Can you implement aQueue using the given Stack? Queue:
Continue readingNext Greater Element Using Stack
Problem Statement: Given a circular integer array A, return the next greater element for every element in A. The next
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