The program uses a character array to receive the input expression and another character array to output the final prefix expression.The program use a stack S to keep track of operators and parenthesis of the expression. If you found any error or any queries related to the above program or any questions or reviews, you wanna to ask from us ,you may Contact Us through our contact Page or you can also comment below in the comment section.We will try our best to reach upto you in the short interval. The user enters an infix expression and the C program converts the infix expression to prefix equivalent expression. If(opndcnt=1)opndcnt=0 /* operator followed by single operand*/ Printf(" Given Prefix Expression : %s\n",prfx) Repeat the steps till the Prefix expression is not scanned completely.īelow is the source code for C Program to convert Prefix into INFIX Expression which is successfully compiled and run on Windows System to produce desired output as shown below :Ĭhar prfx,ch,str,opnd1,opnd2,opr.If the popped character is an empty space, then print it on the console.Input Closing Parantheses ‘)’ and print it on the console.Display popped character from the Stack.If character is operand, push it to stack. Algorithm: Iterate the given expression from right to left (in reverse order), one character at a time. Input Opening Parantheses ‘(‘ and print it on the console. Input: Prefix expression: + A B Output: Infix expression- (A + B) Input: Prefix expression: -A/BC-/AKL Output: Infix expression: ( (A- (B/C)) ( (A/K)-L)) Approach: Use Stacks.If the Stack is not Empty, then Pop the elements from the Stack.The Reversed Prefix Expression is pushed on the Stack.
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