Problem	calc
User	weccs
Submission Time	2025-12-17 11:05:29
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

calc.cpp: In function ‘int main()’:
calc.cpp:33:15: error: cannot convert ‘std::stack<long long int>::empty’ from type ‘bool (std::stack<long long int>::)() const’ to type ‘bool’
33 | while (!s.empty) {
| ^~~~~
calc.cpp:33:15: error: in argument to unary !