In C++
Implement the array-based stack class. Use it in the client codeto convert and compute post-fix expressions.
The postfix expressions are saved in a file named “postfix.txt”,one expression each line.
For simplicity, you may assume all numbers in the expressionsare single digit numbers.
Show
1.Source code: the stack class and the client code;
2.Output screen capture: show the results for the followingexpressions (The errors in some expressions are intentional. Yourcode must detect it and output an error message):
3 7 +
3 7 2 * +
3 7 + 2 *
* 3 7 2 4 – * 5 + 2 * 9 + 4 8 – * +
OR
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OR
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