Compilare: main.cpp: In function 'void solve()': main.cpp:30:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | while (poz < sir.size()) { | ~~~~^~~~~~~~~~~~ main.cpp: In function 'int rotund()': main.cpp:67:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 67 | for (int i = 1; i < v.size(); i++) { | ~~^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:102:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 102 | for (int i = 0; i < sir.size(); i++) { | ~~^~~~~~~~~~~~