Problem	lasers3
User	duck
Submission Time	2025-12-29 18:28:55
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

lasers3.cpp: In function ‘int32_t main()’:
lasers3.cpp:40:10: error: ‘m’ was not declared in this scope
40 | it = m.erase(it);
| ^