Compilare: main.cpp: In function 'void caps()': main.cpp:12:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 12 | for(int i=0; i<s.size(); i++) | ~^~~~~~~~~ main.cpp: In function 'int main()': main.cpp:29:23: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 29 | while(s.size()<poz) | ~~~~~~~~^~~~