combo.cpp:41:19: warning: multi-character character constant [-Wmultichar]
41 | ans.push_back('/0');
| ^~~~
combo.cpp:56:17: warning: multi-character character constant [-Wmultichar]
56 | ans.push_back('/0');
| ^~~~
combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:40:16: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
40 | if(ans.size()==n){
| ~~~~~~~~~~^~~
combo.cpp:41:19: warning: overflow in conversion from 'int' to 'char' changes value from '12080' to ''0'' [-Woverflow]
41 | ans.push_back('/0');
| ^~~~
combo.cpp:56:17: warning: overflow in conversion from 'int' to 'char' changes value from '12080' to ''0'' [-Woverflow]
56 | ans.push_back('/0');
| ^~~~