If Xt1 = m < (kz/2) and Xt = i for 2m 6 i 6 kz, then no matter whether there are items to be picked in bin j, j < m, the picker finally goes to bin i. So,
If Xt1 = m < (kz/2) and Xt = i for 2m 6 i 6 kz, then no matterwhether there are items to be picked in bin j, j < m, the picker finallygoes to bin i. So,