View Compilation Error

0_0_38583445_7670.cpp: In function 'void solve(int)':
0_0_38583445_7670.cpp:16:16: error: 'a' was not declared in this scope
         cin >> a[i];
                ^
0_0_38583445_7670.cpp:20:17: error: 'a' was not declared in this scope
         cout << a[i] << " \n"[i == n - 1];
                 ^