Postfix to Infix Conversion in PythonInfix expression: Infix expressions contain the operator in between the two operands. The operands can themselves contain operators. Though with respect to the middle operator, the expression will be an infix expression. Infix expressions are of the form Example: (X + Y) * (X1 + Y1) Postfix expression: Postfix expressions contain the operator at the end of the two operands. The operands can themselves contain operators. Though with respect to the operator, at the end, the expression will be a postfix expression. Postfix expressions are of the form Example: XY - X1Y1+* (Infix: (X - Y) * (X1 + Y1)) Postfix expressions are also known as reverse Polish expressions. Computers are designed to compute the expressions most often in postfix or sometimes in prefixes. However, it is difficult for us to understand and compute a postfix expression. Postfix Expressions Are ComplexPostfix expressions can be very complicated, with multiple parentheses and operators present in a certain order. We are trained to solve infix expressions. Therefore, we need to convert a prefix expression to an infix expression. Here are some sample inputs and outputs for a better understanding of the problem at hand. Examples: Input: xyz++ Output: (x + (y + z)) Input: xy*z+ Output: ((x*y)+z) Algorithm
Here is the implementation of this algorithm in Python Code Output: The infix expression is: ((x*y)+z) Time Complexity: This algorithm has O(n) time complexity, where n is the length of the given prefix string. Auxiliary Space: Since we are string the symbols of the string in the stack, this program takes O(n) memory space.
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