View Compilation Error

0_0_6967461_14148.cpp: In function `int main()':
0_0_6967461_14148.cpp:9: error: `_int64' undeclared (first use this function)
0_0_6967461_14148.cpp:9: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_6967461_14148.cpp:9: error: `a' undeclared (first use this function)
0_0_6967461_14148.cpp:10: error: `b' undeclared (first use this function)
0_0_6967461_14148.cpp:11: error: expected primary-expression before ')' token
0_0_6967461_14148.cpp:11: error: expected `;' before "malloc"
0_0_6967461_14148.cpp:12: error: expected primary-expression before ')' token
0_0_6967461_14148.cpp:12: error: expected `;' before "malloc"