View Compilation Error

0_0_15515022_17830.cpp:4:1: error: 'll' does not name a type
 ll f[1000005];
 ^
0_0_15515022_17830.cpp: In function 'void init()':
0_0_15515022_17830.cpp:8:4: error: 'f' was not declared in this scope
    f[0]=7,f[1]=11;
    ^
0_0_15515022_17830.cpp: In function 'int main()':
0_0_15515022_17830.cpp:15:2: error: 'll' was not declared in this scope
  ll n;
  ^
0_0_15515022_17830.cpp:16:15: error: 'n' was not declared in this scope
  while(cin >> n)
               ^
0_0_15515022_17830.cpp:18:7: error: 'f' was not declared in this scope
    if(f[n]%3==0)
       ^