Consider an inventory system with a starting inventory 0 units, and net increase of ai units in each period i = 1, 2, n. The numbers ais can be positive or negative. The following are two methods to calculate the inventory-level si at the end of each period. Method A for inventory count 1: for all i = 1, , n do 2: si 0 3: for all j = 1, , i do 4: set si si aj . 5: end for 6: end for Method B for inventory count 1: s0 0 2: for all i = 1, , n do 3: si ai si1 4: end for Which is a better algorithm? Explain