Compilare: main.cpp: In function 'int main()': main.cpp:12:20: 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 st=0;st<s.size()-1;st++)//st | ~~^~~~~~~~~~~ main.cpp:14:27: 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 dr=st+1;dr<s.size();dr++)//dr | ~~^~~~~~~~~ main.cpp:16:41: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 16 | for(int lungime=0;dr+lungime<s.size();lungime++) | ~~~~~~~~~~^~~~~~~~~