View Compilation Error

0_0_24961653_5764.cpp: In function 'int main()':
0_0_24961653_5764.cpp:24:3: error: 'll' was not declared in this scope
   ll ans=abs(x1-n);
   ^
0_0_24961653_5764.cpp:25:12: error: 'ans' was not declared in this scope
   if(x2>=2)ans=min(ans,abs(n-x2));
            ^
0_0_24961653_5764.cpp:26:19: error: 'ans' was not declared in this scope
   printf("%lld\n",ans);
                   ^