View Compilation Error

0_0_7395741_11085.cpp: In function `int main()':
0_0_7395741_11085.cpp:5: error: `_int64' undeclared (first use this function)
0_0_7395741_11085.cpp:5: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_7395741_11085.cpp:5: error: expected `;' before "m"
0_0_7395741_11085.cpp:9: error: `a' undeclared (first use this function)
0_0_7395741_11085.cpp:12: error: `b' undeclared (first use this function)
0_0_7395741_11085.cpp:13: error: `t' undeclared (first use this function)
0_0_7395741_11085.cpp:14: error: `m' undeclared (first use this function)