Problem	childsetter4
User	hklzz
Submission Time	2025-06-17 10:37:28
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

childsetter4.cpp: In function ‘int main()’:
childsetter4.cpp:19:5: error: ‘r’ was not declared in this scope
19 | r
| ^