Problem	calc
User	poopyjshdsd
Submission Time	2026-07-29 15:35:57
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

calc.cpp: In function ‘int main()’:
calc.cpp:21:26: error: ‘std::string’ {aka ‘class std::__cxx11::basic_string<char>’} has no member named ‘top’
21 | sum -= b.top();
| ^~~