View Compilation Error

0_0_2957369_10208.cpp:5: error: expected nested-name-specifier before "long"
0_0_2957369_10208.cpp:5: error: expected unqualified-id before "long"
0_0_2957369_10208.cpp:5: error: expected `;' before "long"
0_0_2957369_10208.cpp:5: error: expected primary-expression before "using"
0_0_2957369_10208.cpp:5: error: expected primary-expression before "using"
0_0_2957369_10208.cpp:6: error: initializer expression list treated as compound expression
0_0_2957369_10208.cpp:6: error: expected `,' or `;' before '{' token
0_0_2957369_10208.cpp: In function `int main()':
0_0_2957369_10208.cpp:21: error: expected nested-name-specifier before "long"
0_0_2957369_10208.cpp:21: error: expected unqualified-id before "long"
0_0_2957369_10208.cpp:21: error: expected `;' before "long"
0_0_2957369_10208.cpp:24: error: `kgcd' cannot be used as a function