Compilare: main.cpp: In function 'void solve()': main.cpp:27:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 27 | for(int i=0;i<s2.size();i++) | ~^~~~~~~~~~ main.cpp:39:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 39 | for(int i=0;i<s10.size();i++) | ~^~~~~~~~~~~