Borderou de evaluare (job #648431)

Compilare: main.cpp: In function 'int main()': main.cpp:15:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 15 | for(int i=0; i<s.size(); i++) | ~^~~~~~~~~ main.cpp:30:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 30 | for(int i=0; i<s.size(); i++) | ~^~~~~~~~~