Lesson 3 - beginners exercise

Read the code in each section and do the following -

1. Add comments to explain the code
2. Suggest test data to test the code
3. Make the suggested changes.

The answers will only say what the code does and how to make the suggested change.

def greatestValue(listOfItems):
	z = listOfItems[0]
	for i in listOfItems:
		z = max(z, i)
	return z

def max(a, b):
	if a>b: return a
	else: return b

print greatestValue([7,2,1,99,3])	

Suggested change Change the above code so it will find the smallest value in the list.

def smallestValue(listOfItems):
	z = listOfItems[0]
	for i in listOfItems:
		z = min(z, i)
	return z

def min(a, b):
	if a

def sum(listOfNumbers):
	total = 0
	for i in listOfNumbers:
		total = total +_ i
	return total

print sum([54,21,97,100])

def average(listOfNumbers):
	total = sum(listOfNumbers)
	return total / len(listOfNumbers)

peopleILike = ["bob", "fred", "sue", "sally"]

def doILike(name):
	like = false
	for i in peopleILike:
		if i == name: like = true
	return like

print "do i like fred? ", doILike("fred")
print "do i like Martin? ", doILike("martin")

peopleILike = ["bob", "fred", "sue", "sally"]
peopleIHate = ["martin", "john", "cris"]
def doILike(name):
	like = false
	for i in peopleILike:
		if i == name: like = true
	for j in peopleIHate:
		if j == name: print "I really hate ", name
	return like