Compilare: main.cpp: In function 'long long int manacher()': main.cpp:9:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 9 | for(int i=1; i<suport.size()-1; i++) | ~^~~~~~~~~~~~~~~~ main.cpp:14:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 14 | while(i+L[i]+1<suport.size() && i-L[i]-1>=0 && suport[i+L[i]+1]==suport[i-L[i]-1]) | ~~~~~~~~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:28:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 28 | for(int i=0; i<s.size(); i++) | ~^~~~~~~~~