Problem	lightningrod
User	IanGohYifeng
Submission Time	2026-08-07 12:04:43
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

lightningrod.cpp: In function ‘int main()’:
lightningrod.cpp:29:14: error: ‘V’ was not declared in this scope
29 | if (!V.empty()) {
| ^