View Compilation Error

0_0_23732306_31535.cpp: In function 'int main()':
0_0_23732306_31535.cpp:11:34: error: expected ')' before 'fn'
     while (n-- && scanf("%d", &i)fn )
                                  ^
0_0_23732306_31535.cpp:11:34: error: 'fn' was not declared in this scope