shelf stocker skeleton alg:
remove merch
sort removed merch in temp area
fill in new merch, then old sorted merch
special cases :
exp checking
FIFO or LIFO
diversity of products on display
very little items of product x
super packed stuffing/ diluted stuffing
left overs
shelf stocker alg lv2 :
exp check
remove merch
sort removed merch in temp area
if quantity > shelf space : set fill mode to stuffed, set overflow replicated amount to storage
fill in new merch, then old sorted merch
kinds not displayed ? remove sample colomn of replicated meerch
and replace with undisplayed merch
left over room ? if yes move chunk of merch on shelf to make room
fronts