View Compilation Error

0_0_18890875_24873.cpp: In function 'int main()':
0_0_18890875_24873.cpp:24:15: error: 'll' was not declared in this scope
     if(!(n & (ll)(1<<i))){
               ^
0_0_18890875_24873.cpp:30:3: error: 'll' was not declared in this scope
   ll ans=n+lowbit(n);
   ^
0_0_18890875_24873.cpp:31:15: error: 'ans' was not declared in this scope
   cnt=l-Count(ans);
               ^