View Compilation Error

0_0_24949388_25596.cpp:1:10: error: #include expects "FILENAME" or <FILENAME>
 #include 
          ^
0_0_24949388_25596.cpp:2:10: error: #include expects "FILENAME" or <FILENAME>
 #include 
          ^
0_0_24949388_25596.cpp: In function 'int main()':
0_0_24949388_25596.cpp:9:5: error: '__int64' was not declared in this scope
     __int64 a[40]={0,2};
     ^
0_0_24949388_25596.cpp:15:9: error: 'a' was not declared in this scope
         a[i]=3*a[i-1]+2;
         ^
0_0_24949388_25596.cpp:17:11: error: 'cin' was not declared in this scope
     while(cin>>n)
           ^
0_0_24949388_25596.cpp:19:26: error: 'a' was not declared in this scope
         printf("%I64d\n",a[n]);
                          ^
0_0_24949388_25596.cpp:19:30: error: 'printf' was not declared in this scope
         printf("%I64d\n",a[n]);
                              ^