Problem	tourist_noi
User	newperson
Submission Time	2025-06-15 15:12:58
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

tourist_noi.cpp: In function ‘int main()’:
tourist_noi.cpp:12:15: error: ‘a’ was not declared in this scope
12 | A.push_back(a);
| ^