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int evalPrefix(std::string expr) { } In lecture thirteen we saw how to convert a prefix expression to an infix expression. You are to write a
int evalPrefix(std::string expr) {
}
In lecture thirteen we saw how to convert a prefix expression to an infix expression. You are to write a function evalPrefix in p2.cpp that accepts a string expr representing a mathematical expression and evaluates that expression. You may assume that each number to be evaluated is one character long. For example, for the expression +51' your function should return 6 (5+1-6)
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