combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:59:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
59 | for (int j = 0; j < N-result.size(); j++)
| ~~^~~~~~~~~~~~~~~~~
combo.cpp:66:33: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
66 | if ((size_cnt = press(check)) > result.size())
| ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~
combo.cpp:82:40: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
82 | if (check.substr(low, high).size() == size_cnt)
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
combo.cpp:89:22: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
89 | if (result.size() == N)
| ~~~~~~~~~~~~~~^~~~