0_0_11484580_31667.cpp:22: error: expected identifier before '(' token
0_0_11484580_31667.cpp:22: error: expected unqualified-id before "int"
0_0_11484580_31667.cpp:22: error: expected `)' before "int"
0_0_11484580_31667.cpp:22: error: expected `,' or `;' before "int"
0_0_11484580_31667.cpp: In function `int main()':
0_0_11484580_31667.cpp:54: error: `union_set' undeclared (first use this function)
0_0_11484580_31667.cpp:54: error: (Each undeclared identifier is reported only once for each function it appears in.)
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