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expression-evaluation

25 posts

Infix, Postfix and Prefix Expressions/Notations

Last Updated: 27 August 2026

Expressions are used to represent calculations by combining operands and operators. Based on the position of the operator, expressions are mainly classified as infix, pref...read more

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expression-evaluation

How Do Sequence Points Relate to Undefined Behaviour in C++?

Last Updated: 04 April 2024

In C++, sequence points are used to determine the order of evaluation of expressions to avoid undefined behavior in our programs. In this article, we will learn how do seq...read more

expression-evaluation

Check if K can be obtained by performing arithmetic operations on any permutation of an Array

Last Updated: 15 July 2025

Given an array arr[] of N integers and an integer K, the task is to check if the expression formed for any permutation of the given array after assigning arithmetic operat...read more

Permutation and Combination

expression-evaluation

Find the minimum value of X for an expression

Last Updated: 10 March 2022

Given an array arr[]. The task is t find the value of X such that the result of the expression (A[1] - X)^2 + (A[2] - X)^2 + (A[3] - X)^2 + ... (A[n-1] - X)^2 + (A[n] – X)...read more

expression-evaluation

What is an Expression and What are the types of Expressions?

Last Updated: 02 August 2019

Expression: An expression is a combination of operators, constants and variables. An expression may consist of one or more operands, and zero or more operators to produce ...read more

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expression-evaluation

Count the number of currency notes needed

Last Updated: 09 June 2022

You have an unlimited amount of banknotes worthAand Bdollars (A not equals to B). You want to pay a total ofS dollars using exactlyNnotes. The task is to find the number o...read more

expression-evaluation

Building Expression tree from Prefix Expression

Last Updated: 11 July 2025

Given a character array a[] represents a prefix expression. The task is to build an Expression Tree for the expression and then print the infix and postfix expression of t...read more

expression-evaluation

Arithmetic Expression Evaluation

Last Updated: 19 June 2023

The stack organization is very effective in evaluating arithmetic expressions. Expressions are usually represented in what is known as Infix notation, in which each operat...read more

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Inorder Traversal

Preorder Traversal

PostOrder Traversal

Data Structures-Stack

expression-evaluation

Parentheses-Problems

Infix to Prefix conversion using two stacks

Last Updated: 11 July 2025

Given an infix expression, the task is to convert it into a prefix expression using two stacks.An infix expression is one in which the operator appears between operands. T...read more

expression-evaluation

Check for balanced parenthesis without using stack

Last Updated: 11 July 2025

Given an expression string exp, write a program to examine whether the pairs and the orders of “{“, ”}”, ”(“, ”)”, ”[“, ”]” are correct in exp.Examples:Input : exp = “[()]...read more

expression-evaluation

Vieta's Formulas

Last Updated: 13 March 2023

Vieta's formula relates the coefficients of polynomial to the sum and product of their roots, as well as the products of the roots taken in groups. Vieta's formula describ...read more

Engineering Mathematics Questions

maths-polynomial

expression-evaluation

Range Queries for Longest Correct Bracket Subsequence Set | 2

Last Updated: 11 July 2025

Given a string s of length n, consisting of opening and closing brackets and an array queries[] consisting of q queries of type [start, end], where start defines the start...read more

expression-evaluation

Evaluate an array expression with numbers, + and -

Last Updated: 19 September 2023

Given an array arr[] of string type which consists of strings "+", "-" and Numbers. Find the sum of the given array.Examples :Input : arr[] = {"3", "+", "4", "-", "7", "+"...read more

expression-evaluation

Solve the Linear Equation of Single Variable

Last Updated: 24 June 2024

Given a linear equation, task is to find the value of variable used. The equation contains only '+', '-' operation, the variable and its coefficient.If there is no solutio...read more

expression-evaluation

Print Bracket Number

Last Updated: 25 April 2025

Given a string s containing brackets and characters, the task is to find the bracket numbers for each bracket in the string. A bracket number represents the order in which...read more

expression-evaluation

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