View Compilation Error

0_0_26344459_11785.cpp:12:12: error: expected ',' or ';' before 'long'
 #define ll long long
            ^
0_0_26344459_11785.cpp:19:1: note: in expansion of macro 'll'
 ll f[maxn],inv[maxn];
 ^
0_0_26344459_11785.cpp: In function 'void init()':
0_0_26344459_11785.cpp:33:2: error: 'f' was not declared in this scope
  f[0]=inv[0]=1;
  ^
0_0_26344459_11785.cpp:33:7: error: 'inv' was not declared in this scope
  f[0]=inv[0]=1;
       ^
0_0_26344459_11785.cpp: In function 'long long int C(long long int, long long int)':
0_0_26344459_11785.cpp:43:9: error: 'f' was not declared in this scope
  return f[n]*inv[n-m]%mod*inv[m]%mod;
         ^
0_0_26344459_11785.cpp:43:14: error: 'inv' was not declared in this scope
  return f[n]*inv[n-m]%mod*inv[m]%mod;
              ^