Borderou de evaluare (job #642802)

Compilare: main.cpp: In function 'long long int eval(std::string, std::string)': main.cpp:14:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 14 | for(int i = 0; i < b.size(); i++){ | ~~^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:47:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 47 | for(int i = 0; i < s.size(); i++){ | ~~^~~~~~~~~~