combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:16:21: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
16 | while (s.size() < n) {
| ~~~~~~~~~^~~
combo.cpp:19:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
19 | if (press(p) == p.size()) {
| ~~~~~~~~~^~~~~~~~~~~