Select the correct answerWhat is the value of the postfix expression 4 7 1 3 + – *?Options-1012741
Question
Select the correct answerWhat is the value of the postfix expression 4 7 1 3 + – *?Options-1012741
Solution
The postfix expression is evaluated using a stack. Here are the steps:
- Push 4 onto the stack.
- Push 7 onto the stack.
- Push 1 onto the stack.
- Push 3 onto the stack.
- Pop two elements (3 and 1), add them, and push the result (4) onto the stack.
- Pop two elements (4 and 7), subtract the second from the first, and push the result (3) onto the stack.
- Pop two elements (3 and 4), multiply them, and push the result (12) onto the stack.
So, the value of the postfix expression 4 7 1 3 + - * is 12. Therefore, the correct answer is 12.
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