Problem	combo
User	popperoni
Submission Time	2025-07-15 23:19:35
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

combo.cpp: In function ‘std::string guess_sequence(int)’:
combo.cpp:95:18: error: could not convert ‘-1’ from ‘int’ to ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’}
95 | } else return -1;
| ^
| |
| int