## Conversion from Prefix to Infix

Application of Stacks Conversion from Prefix to Infix The algorithm for converting a Prefix expression to an Infix notation is as follows: Accept a prefix string from the user. Start scanning the string from right one character at a time. If it is an operand, push it in stack. If it is an operator, pop opnd1, opnd2 and concatenate them in the order (opnd1, optr, opnd2) as follows: strcpy(arr,opnd1); strcat(arr,optr);…

Read more...## Conversion from Prefix to Postfix

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Application of Stacks Conversion from Prefix to Postfix The algorithm for converting a Prefix expression to a Postfix notation is as follows: Accept a prefix string from the user. Start scanning the string from right one character at a time. If it is an operand, push it in stack. If it is an operator, pop opnd1, opnd2 and concatenate them in the order (opnd1, opnd2, optr) as follows: strcpy(arr,opnd1); strcat(arr,opnd2);…

Read more...## Conversion from Postfix to Infix

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Application of Stacks Conversion from Postfix to Infix The algorithm for converting a Postfix expression to Infix notation is as follows: Accept a postfix string from the user. Start scanning the string from left to right one character at a time. If it is an operand, push it in stack. If it is an operator, pop opnd2, opnd1 and concatenate them in the order (opnd1, optr, opnd2) as follows: strcpy(arr,opnd1);…

Read more...## Conversion from Postfix to Prefix

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Application of Stacks Conversion from Postfix to Prefix The algorithm for converting a Postfix expression to Prefix notation is as follows: Accept a postfix string from the user. Start scanning the string from left to right one character at a time. If it is an operand, push it in stack. If it is an operator, pop opnd2, opnd1 and concatenate them in the order (optr, opnd1, opnd2) as follows: strcpy(arr,optr);…

Read more...## Conversion from Infix to Prefix

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Application of Stacks Conversion from Infix to Prefix The algorithm for converting an Infix expression to Prefix is as follows: An Infix expression is converted into Prefix using two stacks, one for operator and another for operands. The infix sting is read in an array, from which symbols/characters are fetched one by one and the following checks are performed: If symbol is an operand, push it in operand’s stack. Initialize…

Read more...## Conversion from Infix to Postfix

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Application of Stacks Conversion from Infix to Postfix The algorithm for converting an Infix expression to Postfix is as follows: An Infix expression is converted into Postfix using two stacks, one for operator and another for operands. The infix sting is read in an array, from which symbols/characters are fetched one by one and the following checks are performed: If symbol is an operand, push it in operand’s stack. Initialize…

Read more...## Evaluation of Infix expression

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Application of Stacks Evaluation of Infix expression An infix expression is evaluated using two stacks, one for operator and another for operands. The infix sting is read in an array, from which symbols/characters are fetched one by one and the following checks are performed: If symbol is an operand, push it in operand’s stack. Initialize operator stack with a dummy operator with the least precedence (say #). If the symbol…

Read more...## Evaluation of Prefix expression

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Read more...## Evaluation of Postfix expression

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Application of Stacks Evaluation of Postfix expression The algorithm for evaluating a postfix expression is as follows: Accept a postfix string from the user. say (ABCD*+-), let A=4, B=3, C=2, D=5 i.e. (4325*+-) is the input postfix string. Start scanning the string from left to right one character at a time. If it is an operand, push it in stack. If it is an operator, pop opnd2, opnd1 and perform…

Read more...## Parenthesis checker

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Application of Stacks Parenthesis checker It is an algorithm that confirms that the number of closing parenthesis equals opening parenthesis by using stack. If number of closing parenthesis is not equal to the number of opening parenthesis, then it results in an error. Input a string from the user. The user must enter a set of opening and closing parenthesis as follows: (()(())) Scan the above input string from first…

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