Compilare: main.cpp: In function 'int main()': main.cpp:93:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Punct>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 93 | for(i=0;i<st.size();i++) | ~^~~~~~~~~~ main.cpp:53:11: warning: unused variable 'j' [-Wunused-variable] 53 | int i,j,n,poz; | ^ main.cpp: In function 'int cadran(Punct)': main.cpp:29:1: warning: control reaches end of non-void function [-Wreturn-type] 29 | } | ^ main.cpp: In function 'bool cmp(Punct, Punct)': main.cpp:47:1: warning: control reaches end of non-void function [-Wreturn-type] 47 | } | ^ In file included from /usr/include/c++/12.2.1/bits/exception_ptr.h:43, from /usr/include/c++/12.2.1/exception:168, from /usr/include/c++/12.2.1/ios:39, from /usr/include/c++/12.2.1/ostream:38, from /usr/include/c++/12.2.1/iostream:39, from main.cpp:1: In function 'constexpr std::_Require<std::__not_<std::__is_tuple_like<_Tp> >, std::is_move_constructible<_Tp>, std::is_move_assignable<_Tp> > std::swap(_Tp&, _Tp&) [with _Tp = Punct]', inlined from 'int main()' at main.cpp:72:9: /usr/include/c++/12.2.1/bits/move.h:206:7: warning: 'poz' may be used uninitialized [-Wmaybe-uninitialized] 206 | __b = _GLIBCXX_MOVE(__tmp); | ^~~ main.cpp: In function 'int main()': main.cpp:53:15: note: 'poz' was declared here 53 | int i,j,n,poz; | ^~~