View Compilation Error

0_0_35417618_633.cpp:5:10: error: #include expects "FILENAME" or <FILENAME>
 #include 
          ^
0_0_35417618_633.cpp:8:10: error: #include expects "FILENAME" or <FILENAME>
 #include 
          ^
0_0_35417618_633.cpp:11:10: error: #include expects "FILENAME" or <FILENAME>
 #include 
          ^
0_0_35417618_633.cpp: In function 'int main()':
0_0_35417618_633.cpp:19:16: error: 'scanf' was not declared in this scope
  scanf("%d", &n);
                ^
0_0_35417618_633.cpp:22:7: error: expected ')' at end of input
   if (a
       ^
0_0_35417618_633.cpp:22:7: error: expected statement at end of input
0_0_35417618_633.cpp:22:7: error: expected '}' at end of input
0_0_35417618_633.cpp:22:7: error: expected '}' at end of input