foo.cpp:1:1: error: 'include' does not name a type
 include <iostream>
 ^
foo.cpp: In function 'int main()':
foo.cpp:6:19: error: 'cin' was not declared in this scope
 for(i=1;i<=10;i++)cin>>a[i];
                   ^
foo.cpp:7:1: error: 'cin' was not declared in this scope
 cin>>taotao;
 ^
foo.cpp:9:1: error: 'cout' was not declared in this scope
 cout<<sum;return 0;
 ^