View Compilation Error

0_0_12703458_1922.cpp: In function `int main()':
0_0_12703458_1922.cpp:4: error: `int64' undeclared (first use this function)
0_0_12703458_1922.cpp:4: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_12703458_1922.cpp:4: error: expected `;' before "s"
0_0_12703458_1922.cpp:7: error: `s' undeclared (first use this function)