View Compilation Error

0_0_13941408_18111.cpp: In function 'int main()':
0_0_13941408_18111.cpp:27:9: error: 'LL' was not declared in this scope
         LL ans=0;  
         ^
0_0_13941408_18111.cpp:48:21: error: 'ans' was not declared in this scope
                     ans=ans+500*f[i].x+2*f[i].y;  
                     ^
0_0_13941408_18111.cpp:53:33: error: 'ans' was not declared in this scope
         printf("%d %I64d\n",num,ans);  
                                 ^