View Compilation Error

0_0_12021627_2081.cpp: In function `int main()':
0_0_12021627_2081.cpp:9: error: `_int64' undeclared (first use this function)
0_0_12021627_2081.cpp:9: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_12021627_2081.cpp:9: error: expected `;' before "m"
0_0_12021627_2081.cpp:18: error: `t' undeclared (first use this function)
0_0_12021627_2081.cpp:18: error: `m' undeclared (first use this function)
0_0_12021627_2081.cpp:19: error: `n' undeclared (first use this function)