Compilare: main.cpp: In function 'int main()': main.cpp:19:26: 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] 19 | for (long long i = 0; i < str1.size(); i++) { | ~~^~~~~~~~~~~~~ main.cpp:41:27: 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] 41 | for (long long i = 0; i < str1.size(); i++) { | ~~^~~~~~~~~~~~~ main.cpp:57:37: 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 | for (long long i = str1.size(); i < str2.size(); i++) { | ~~^~~~~~~~~~~~~ main.cpp:80:27: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 80 | for (long long i = 0; i < rez.size(); i++) { | ~~^~~~~~~~~~~~ main.cpp:40:31: warning: unused variable 'l2' [-Wunused-variable] 40 | long long l1 = str1.size(), l2 = str2.size(); | ^~