a) for i = 1 to n
for j = 5 to 27 for k = i to 2*i d = d+1
b) for i = 1 to n do
j = 3*i
while j <= n-3 do j = j+1
d = d+1
c) i = 1
j = n-4
while j > 1
for k = 1 to i do d = d+1
i = 3*i
j = j/3
Analyze the following pieces of pseudocode and for each of them give a tight (0) bound on the running time as a function of 7/. Show your work.