View Compilation Error

0_0_29344093_8875.cpp:1:30: error: stray '#' in program
 <pre name="code" class="cpp">#include <iostream>
                              ^
0_0_29344093_8875.cpp:1:1: error: expected unqualified-id before '<' token
 <pre name="code" class="cpp">#include <iostream>
 ^
0_0_29344093_8875.cpp: In function 'int main()':
0_0_29344093_8875.cpp:31:10: error: 'cin' was not declared in this scope
   while (cin>>n,n)
          ^
0_0_29344093_8875.cpp:36:4: error: 'cout' was not declared in this scope
    cout<<h[n][i++];
    ^
0_0_29344093_8875.cpp:38:26: error: 'printf' was not declared in this scope
     printf("%07d",h[n][i]);
                          ^
0_0_29344093_8875.cpp:39:10: error: 'endl' was not declared in this scope
    cout<<endl;
          ^