Compilare: main.cpp: In function 'int verif(int)': main.cpp:13:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 13 | for(int i=poz+poz1; i<s.size(); i+=poz1) | ~^~~~~~~~~ main.cpp: In function 'void schimba(int)': main.cpp:27:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 27 | for(int i=poz+poz1; i<s.size(); i+=poz1) | ~^~~~~~~~~ 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 'long unsigned int'} [-Wsign-compare] 34 | for(int i=0; i<s.size(); i++) | ~^~~~~~~~~ main.cpp:36:13: warning: unused variable 'i1' [-Wunused-variable] 36 | int i1=i+2; | ^~