Compilare: main.cpp: In function 'int main()': main.cpp:39:19: 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] 39 | for (int i=0;i<s.length();i++) { | ~^~~~~~~~~~~ main.cpp:45:19: 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] 45 | for (int i=0;i<t.length();i++) { | ~^~~~~~~~~~~ main.cpp:52:30: 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] 52 | for (int i=s.length()-1;i<s.length();i++) { | ~^~~~~~~~~~~ main.cpp:59:19: 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] 59 | for (int i=0;i<rez.size();i++) { | ~^~~~~~~~~~~