Compilare: main.cpp: In function 'std::vector<long long int> manacher(const std::vector<std::__cxx11::basic_string<char> >&)': main.cpp:17:28: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 17 | for(long long i=0;i<a.size();i++){ | ~^~~~~~~~~ main.cpp:21:42: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 21 | while(i-v1[i]>=0&&i+v1[i]<v1.size()&&a[i-v1[i]]==a[i+v1[i]]){ | ~~~~~~~^~~~~~~~~~ main.cpp: In function 'long long int rez(const std::vector<std::__cxx11::basic_string<char> >&)': main.cpp:35:28: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 35 | for(long long i=0;i<man.size();i+=2){ | ~^~~~~~~~~~~ main.cpp:50:28: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 50 | for(long long i=2;i<man.size();i+=2) | ~^~~~~~~~~~~ main.cpp: In function 'void rotat(std::vector<std::__cxx11::basic_string<char> >&)': main.cpp:57:28: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 57 | for(long long i=0;i<v.size();i++){ | ~^~~~~~~~~