Compilare: main.cpp: In function 'std::vector<long long int> lps(std::string)': main.cpp:22:22: 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] 22 | for(int i = 1; i < a.size();){ | ~~^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:53:29: 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] 53 | for(int i = 0, j = 0; i < b.size();){ | ~~^~~~~~~~~~ main.cpp:57:18: 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] 57 | if(j == a.size()){ | ~~^~~~~~~~~~~ main.cpp:45:9: warning: unused variable 'p' [-Wunused-variable] 45 | int p = 0, n = 0; | ^