Compilare: main.cpp: In function 'int main()': main.cpp:53:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 53 | for (i = 0; i < s.size(); ++i) | ~~^~~~~~~~~~ main.cpp:58:48: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 58 | while ((cnt + 2) * len <= s.size()) | ~~~~~~~~~~~~~~~~^~~~~~~~~~~ main.cpp:43:19: warning: unused variable 'j' [-Wunused-variable] 43 | int t, i, j, rez; | ^