View Compilation Error

0_0_9612176_21464.cpp: In function `int main()':
0_0_9612176_21464.cpp:6: error: `_int64' undeclared (first use this function)
0_0_9612176_21464.cpp:6: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_9612176_21464.cpp:6: error: expected `;' before "a"
0_0_9612176_21464.cpp:9: error: `a' undeclared (first use this function)
0_0_9612176_21464.cpp:9: error: `b' undeclared (first use this function)
0_0_9612176_21464.cpp:10: error: `R1' undeclared (first use this function)
0_0_9612176_21464.cpp:10: error: `R2' undeclared (first use this function)
0_0_9612176_21464.cpp:10: error: `R3' undeclared (first use this function)
0_0_9612176_21464.cpp:12: error: `l' undeclared (first use this function)
0_0_9612176_21464.cpp:13: error: `i' undeclared (first use this function)