Problem	ccs
User	DaPeter
Submission Time	2025-12-12 14:54:58
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

ccs.cpp: In function ‘int main()’:
ccs.cpp:18:26: error: ‘s’ was not declared in this scope
18 | if (a.lower_bound(x)!=s.end() && *a.upper_bound(x)<=y) cout<<"NO"<<endl;
| ^