Borderou de evaluare (job #596842)

Compilare: main.cpp: In function 'long long int calculate(std::string)': main.cpp:19:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 19 | for(int i=0;i<s.size();i++) | ~^~~~~~~~~ main.cpp: In function 'bool verify(std::string)': main.cpp:32:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 32 | for(int i=0;i<s.size();i++) | ~^~~~~~~~~ main.cpp: In function 'int main()': main.cpp:60:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 60 | for(int i=0;i<s.size()-1;i++) | ~^~~~~~~~~~~