View Compilation Error

232097_0_20695.cpp: In function `int main()':
232097_0_20695.cpp:2: error: `_int64' undeclared (first use this function)
232097_0_20695.cpp:2: error: (Each undeclared identifier is reported only once for each function it appears in.)
232097_0_20695.cpp:2: error: expected `;' before "n"
232097_0_20695.cpp:3: error: `n' undeclared (first use this function)