View Compilation Error

221351_0_11292.cpp: In function `int main()':
221351_0_11292.cpp:6: error: `_int64' undeclared (first use this function)
221351_0_11292.cpp:6: error: (Each undeclared identifier is reported only once for each function it appears in.)
221351_0_11292.cpp:6: error: expected `;' before "result"
221351_0_11292.cpp:9: error: `ans' undeclared (first use this function)
221351_0_11292.cpp:19: error: `result' undeclared (first use this function)