View Compilation Error

0_0_13722750_28393.cpp:1:9: error: #include expects "FILENAME" or <FILENAME>
 #include
         ^
0_0_13722750_28393.cpp:2:9: error: #include expects "FILENAME" or <FILENAME>
 #include
         ^
0_0_13722750_28393.cpp:3:9: error: #include expects "FILENAME" or <FILENAME>
 #include
         ^
0_0_13722750_28393.cpp:4:9: error: #include expects "FILENAME" or <FILENAME>
 #include
         ^
0_0_13722750_28393.cpp: In function 'int main()':
0_0_13722750_28393.cpp:63:30: error: 'scanf' was not declared in this scope
     while(~scanf("%d%d",&n,&d))
                              ^
0_0_13722750_28393.cpp:70:29: error: 'sort' was not declared in this scope
         sort(num2+1,num2+1+n);
                             ^
0_0_13722750_28393.cpp:81:35: error: 'memset' was not declared in this scope
         memset(coun,0,sizeof(coun));
                                   ^
0_0_13722750_28393.cpp:95:26: error: 'printf' was not declared in this scope
         printf("%d\n",sum);
                          ^