View Compilation Error

397144_0_0_28159.cpp: In function `int main()':
397144_0_0_28159.cpp:4: error: `int64' undeclared (first use this function)
397144_0_0_28159.cpp:4: error: (Each undeclared identifier is reported only once for each function it appears in.)
397144_0_0_28159.cpp:4: error: expected `;' before "a"
397144_0_0_28159.cpp:6: error: `a' undeclared (first use this function)