View Compilation Error

0_0_2857016_24952.cpp: In function `int main()':
0_0_2857016_24952.cpp:7: error: `_int64' undeclared (first use this function)
0_0_2857016_24952.cpp:7: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_2857016_24952.cpp:7: error: expected `;' before "f"
0_0_2857016_24952.cpp:7: error: expected primary-expression before ',' token
0_0_2857016_24952.cpp:7: error: `b' undeclared (first use this function)
0_0_2857016_24952.cpp:7: error: expected primary-expression before '{' token
0_0_2857016_24952.cpp:7: error: expected `;' before '{' token
0_0_2857016_24952.cpp:8: error: `f' undeclared (first use this function)