View Compilation Error

48316_0_8933.cpp: In function `int main()':
48316_0_8933.cpp:4: error: `_int64' undeclared (first use this function)
48316_0_8933.cpp:4: error: (Each undeclared identifier is reported only once for each function it appears in.)
48316_0_8933.cpp:4: error: expected `;' before "b"
48316_0_8933.cpp:9: error: `b' undeclared (first use this function)