View Compilation Error

0_0_9942921_5631.cpp:4: error: `ll' does not name a type
0_0_9942921_5631.cpp: In function `int main()':
0_0_9942921_5631.cpp:19: error: `ll' undeclared (first use this function)
0_0_9942921_5631.cpp:19: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_9942921_5631.cpp:19: error: expected `;' before "a"
0_0_9942921_5631.cpp:20: error: `a' undeclared (first use this function)
0_0_9942921_5631.cpp:20: error: `b' undeclared (first use this function)
0_0_9942921_5631.cpp:20: error: `c' undeclared (first use this function)
0_0_9942921_5631.cpp:21: error: `fastpow' undeclared (first use this function)