combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:49:29: error: could not convert ''F'' from 'char' to 'std::string' {aka 'std::__cxx11::basic_string<char>'}
49 | if (press(str) == 1) press('F');
| ^~~
| |
| char
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 | if (press(str + a) == str.size() + 1) str += a;
| ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~
combo.cpp:60:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
60 | else if (press(str + b) == str.size() + 1) str += b;
| ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~