Problem	lightsout
User	reporter
Submission Time	2023-01-14 11:19:49
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

lightsout.cpp: In function ‘void backtrack(int, int, int, int)’:
lightsout.cpp:73:9: error: ‘flip’ was not declared in this scope
73 | flip(v[a].s-1);
| ^~~~
lightsout.cpp: In function ‘int lightsout(int, int*, int*)’:
lightsout.cpp:93:9: error: ‘flip’ was not declared in this scope
93 | flip(0);
| ^~~~