View Compilation Error

0_0_33509894_10394.cpp: In function 'int main()':
0_0_33509894_10394.cpp:21:16: error: 'f' was not declared in this scope
             if(f==0)
                ^
0_0_33509894_10394.cpp:23:23: error: 'll' was not declared in this scope
                 sum+=(ll)a;
                       ^
0_0_33509894_10394.cpp:31:25: error: 'd' was not declared in this scope
                     if((d[i]-d[i-1])*(ll)b>(ll)2*a+(ll)b)
                         ^
0_0_33509894_10394.cpp:31:39: error: 'll' was not declared in this scope
                     if((d[i]-d[i-1])*(ll)b>(ll)2*a+(ll)b)
                                       ^
0_0_33509894_10394.cpp:31:42: error: expected ')' before 'b'
                     if((d[i]-d[i-1])*(ll)b>(ll)2*a+(ll)b)
                                          ^
0_0_33509894_10394.cpp:43:23: error: 'll' was not declared in this scope
                 sum+=(ll)a;
                       ^
0_0_33509894_10394.cpp:45:29: error: 'cas' was not declared in this scope
         printf("Case #%d: ",cas++);
                             ^