Use the blocks on the right and place them in order in a list on the left to describe an algorithm that takes as input a list of n integers and produces as output the largest difference obtained by subtracting an integer in the list from the one following it.
if m procedure difference(a1, a2, an: integers)
for i=2 to n
max = a1-a2
max = a2-a1
m = a(i-1) - ai
for i=2 to n-1
m = ai a(i+1)
if m> max then max = m