View Compilation Error

0_0_6200251_14214.cpp: In function `int main()':
0_0_6200251_14214.cpp:4: error: `_int64' undeclared (first use this function)
0_0_6200251_14214.cpp:4: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_6200251_14214.cpp:4: error: expected `;' before "t"
0_0_6200251_14214.cpp:11: error: `t' undeclared (first use this function)