Problem	usefft1
User	Potato3218
Submission Time	2023-03-14 21:27:55
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

usefft1.cpp: In function ‘int main()’:
usefft1.cpp:17:4: error: ‘C’ was not declared in this scope
17 | C[i + j] += A[i] * B[j];
| ^
usefft1.cpp:21:39: error: ‘C’ was not declared in this scope
21 | for(int i = 0; i <= 2*n-2;i++) cout<<C[i]<<' ';
| ^