Problem	monsters
User	StormyGood
Submission Time	2025-11-07 10:58:06
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

monsters.cpp: In function ‘int main()’:
monsters.cpp:22:25: error: expression cannot be used as a function
22 | aaa.push(b[k].second());
| ^