![]() ![]() A postfix expression is a parenthesis-free expression.PQ-C/, here – operation is done on P and Q and then / is applied on C and the previous result. In the infix expressions, it is difficult to keep track of the operator precedence whereas here the postfix expression itself determines the precedence of operators (which is done by the placement of operators)i.e the operator which occurs first operates on the operand.The postfix expression as the name suggests has the operator placed right after the two operands.Hence we have postfix and prefix notations which make the computer take less effort to solve the problem.However, the computer finds it difficult to parse – Information is needed about operator precedence and associativity rules, and brackets that override these rules. Such expressions are easy to understand and evaluate for human beings.A+B here the plus operator is placed inside between the two operators, (A*B)/Q. As the name suggests, here the operator is fixed inside between the operands.The traditional method of writing mathematical expressions is called infix expressions. ![]() ![]() Problem Statement: Given an infix expression, Your task is to convert the given infix expression to a postfix expression.Įxamples: Example 1: Input: a+b*(c^d-e)^(f+g*h)-iĭisclaimer: Don’t jump directly to the solution, try it out yourself first. ![]()
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