Suppose the function is_balanced in Paren_Checker.cpp is called with the expression
[ (x + y)/8 - z [ p * {r + q) ] ]
What is the value of s.top() in the return statement?
A) empty
B) [
C) ]
D) {

Question

Quizplus · Accepted Answer

The expression contains mismatched and unbalanced parentheses, brackets, and braces. The last unmatched opening delimiter encountered before the error is detected is '[', which would be at the top of the stack when the function determines the expression is not balanced.

Suppose the Function Is_balanced in Paren_Checker