View Compilation Error

279859_0_4287.cpp: In function `int main()':
279859_0_4287.cpp:11: error: `X' undeclared (first use this function)
279859_0_4287.cpp:11: error: (Each undeclared identifier is reported only once for each function it appears in.)
279859_0_4287.cpp: At global scope:
279859_0_4287.cpp:15: error: expected unqualified-id before "return"
279859_0_4287.cpp:15: error: expected `,' or `;' before "return"
279859_0_4287.cpp:15: error: expected declaration before '}' token