View Compilation Error

0_0_29954773_2038.cpp:7:1: error: 'll' does not name a type
 ll phi[maxn];
 ^
0_0_29954773_2038.cpp:8:1: error: 'll' does not name a type
 ll f[maxn];
 ^
0_0_29954773_2038.cpp: In function 'void GP()':
0_0_29954773_2038.cpp:11:29: error: 'phi' was not declared in this scope
     for(int i=2;i<maxn;i++) phi[i]=0;
                             ^
0_0_29954773_2038.cpp:12:5: error: 'phi' was not declared in this scope
     phi[1]=1;
     ^
0_0_29954773_2038.cpp:21:5: error: 'f' was not declared in this scope
     f[1]=2;
     ^
0_0_29954773_2038.cpp: In function 'int main()':
0_0_29954773_2038.cpp:30:15: error: 'f' was not declared in this scope
         cout<<f[n]*2-1<<endl;
               ^