Compilare: main.cpp: In function 'int main()': main.cpp:12:31: 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, pos = 2; i < s.size(); i ++, pos ++) { | ~~^~~~~~~~~~ main.cpp:14:36: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 14 | for(int j = i + pos; j < s.size(); j += pos) { | ~~^~~~~~~~~~ main.cpp:21:36: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 21 | for(int j = i + pos; j < s.size(); j += pos) | ~~^~~~~~~~~~ main.cpp:27:40: 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 j = i + pos; j < s.size(); j += pos) { | ~~^~~~~~~~~~ main.cpp:37:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 37 | for(int i = 0; i < s.size(); i ++) | ~~^~~~~~~~~~