View Compilation Error

0_0_28144857_32711.cpp: In function 'void Dirichlet(long long int*, long long int*)':
0_0_28144857_32711.cpp:18:12: error: 'tmp' was not declared in this scope
     memset(tmp, 0, sizeof(tmp));
            ^
0_0_28144857_32711.cpp: In function 'void solve()':
0_0_28144857_32711.cpp:36:20: error: 'f' was not declared in this scope
     Dirichlet(ans, f);
                    ^
0_0_28144857_32711.cpp: In function 'int main()':
0_0_28144857_32711.cpp:47:20: error: 'f' was not declared in this scope
             cin >> f[i];
                    ^