Problem	combo
User	user123
Submission Time	2023-11-26 12:57:10
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

combo.cpp: In function ‘std::string guess_sequence(int)’:
combo.cpp:17:20: error: ‘press’ was not declared in this scope
17 | len[b]=press(s+butt[b])
| ^~~~~