Borderou de evaluare (job #772056)

Compilare: main.cpp: In function 'int convert(std::string)': main.cpp:20:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 20 | for(int i=0; i<x.size(); ++i) | ~^~~~~~~~~ main.cpp: In function 'int main()': main.cpp:34:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 34 | for(int i=0; i<s.size(); ++i) | ~^~~~~~~~~ main.cpp:28:17: warning: unused variable 'i' [-Wunused-variable] 28 | int xi, yi, i; | ^