Problem	GSS
User	R9q5P8
Submission Time	2025-11-18 13:14:12
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

GSS.cpp: In function ‘int main()’:
GSS.cpp:25:12: error: lvalue required as decrement operand
25 | ((back--)--)--;
| ^~
GSS.cpp:29:33: error: expected ‘;’ before ‘cout’
29 | sum += *next(costs.begin(), i)
| ^
| ;
30 |
31 | cout << sum;
| ~~~~