View Compilation Error

0_0_38633933_23873.cpp:5:26: error: 'long long long' is too long for GCC
 typedef __int64 unsigned long long;
                          ^~~~
0_0_38633933_23873.cpp:5:31: error: 'long long long' is too long for GCC
 typedef __int64 unsigned long long;
                               ^~~~
0_0_38633933_23873.cpp:5:31: error: declaration does not declare anything [-fpermissive]