Compilare: main.cpp: In function 'int main()': main.cpp:38:19: 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] 38 | for (int i=0;i<s.length();i++) { | ~^~~~~~~~~~~ main.cpp:44:19: 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] 44 | for (int i=0;i<t.length();i++) { | ~^~~~~~~~~~~ main.cpp:51:30: 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] 51 | for (int i=s.length()-1;i<s.length();i++) { | ~^~~~~~~~~~~ main.cpp:58:19: 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] 58 | for (int i=0;i<rez.size();i++) { | ~^~~~~~~~~~~