View Compilation Error

0_0_36343335_12040.cpp:20:1: error: 'll' does not name a type
 ll fpow(ll a,ll n)
 ^
0_0_36343335_12040.cpp: In function 'void MAIN()':
0_0_36343335_12040.cpp:36:18: error: 'qpow' was not declared in this scope
  b=qpow(a,(P-1)/2);
                  ^