View Compilation Error

0_0_30125080_18490.cpp:1:2: error: expected unqualified-id before '/' token
 */
  ^
0_0_30125080_18490.cpp:1:2: error: expected constructor, destructor, or type conversion before '/' token
0_0_30125080_18490.cpp:2:49: error: expected declaration before end of line
 #pragma GCC optimize("Ofast,no-stack-protector")
                                                 ^