View Compilation Error

0_0_29482050_17405.cpp:1:10: error: #include expects "FILENAME" or <FILENAME>
 #include 
          ^
0_0_29482050_17405.cpp:2:10: error: #include expects "FILENAME" or <FILENAME>
 #include 
          ^
0_0_29482050_17405.cpp:3:10: error: #include expects "FILENAME" or <FILENAME>
 #include 
          ^
0_0_29482050_17405.cpp:4:10: error: #include expects "FILENAME" or <FILENAME>
 #include 
          ^
0_0_29482050_17405.cpp:6:9: error: '__int64' does not name a type
 typedef __int64 ll;
         ^
0_0_29482050_17405.cpp:7:28: error: 'acos' was not declared in this scope
 const double pi = acos(-1.0);
                            ^
0_0_29482050_17405.cpp: In function 'void FFT(Complex*, int, int)':
0_0_29482050_17405.cpp:26:32: error: 'x' was not declared in this scope
                 if (i= MOD)    x -= MOD;
                                ^
0_0_29482050_17405.cpp:29:42: error: a function-definition is not allowed here before '{' token
 void mul(int *tmp1, int *tmp2, int maxn) {
                                          ^
0_0_29482050_17405.cpp:92:1: error: expected '}' at end of input
 }
 ^