CSE/IT/MCA and BCA Free Placement Series
we will learn how to evaluate prefix expression with example @EzyCode
In this video i have taken the example of previous lecture. So, it is recommended to watch the previous videos to get the basic concepts of Postfix expression, Infix expression and prefix expression.
Topic covered:
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1. How to approach to evaluate the prefix expression
2. Steps to solve the prefix expression
3. Examples of prefix Expression
4. evaluating prefix expression
basically, to evaluate the prefix expression you have to remember the following points
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1. scan the prefix expression from right to left
2. if the character is operand the push it into stack
3. if the symbol is operator then
A. Pop the two element and perform the operation.
B. find the result and push it in the stack
4. repeat the steps from 1 to 3 until all the symbols are scanned.
This video will help the students who is preparing for GATE, UGC NET or who is appearing for university examination like B.Tech, MCA and BCA.
Facebook Ezycode:
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Facebook Chandra Mani:
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#ezycode
#stack
#datastructures
#dsa
#clanguage
