View Compilation Error

0_0_29722963_32016.cpp: In function 'void update(int, int, int, int, int, int)':
0_0_29722963_32016.cpp:75:72: error: invalid use of member (did you forget the '&' ?)
         seg[i].sum=(10ll*d*seg[i].f%mod+10ll*seg[i].sum%mod+1ll*seg[i].len*d%mod)%mod;
                                                                        ^