View Compilation Error

0_0_3981153_29616.cpp: In function `int main()':
0_0_3981153_29616.cpp:12: error: `int64' undeclared (first use this function)
0_0_3981153_29616.cpp:12: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_3981153_29616.cpp:12: error: expected `;' before "temp"
0_0_3981153_29616.cpp: In function `int main()':
0_0_3981153_29616.cpp:21: error: redefinition of `int main()'
0_0_3981153_29616.cpp:4: error: `int main()' previously defined here