Problem	buygifts
User	Henries
Submission Time	2025-01-14 14:31:10
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

buygifts.cpp: In function ‘bool check(long long int)’:
buygifts.cpp:27:8: error: ‘vis’ was not declared in this scope
27 | if (vis[f] == false){
| ^~~