Task 3 SAMPLE Code 2018 pre-release

for c in cow_sort:
    for i in range(len(cow_id)):
        if cow_id[i-1] == c:
            cow_total+=milk_yield_morning[i-1]
            cow_total+=milk_yield_evening[i-1]
            if milk_yield_morning[i-1] + milk_yield_evening[i-1] <12:
                low_prod+=1

    print('Cow %s yielded %d litres' % (c,round(cow_total)))
    if low_prod >=4:
        print("Cow",c,"Low yield for",low_prod,"days")
    if highest < cow_total:
        highest = cow_total
        highestcow=c
    if lowest > cow_total:
        lowest = cow_total
        lowestcow=c

    cow_total=0
    low_prod=0

print("\nThe best weekly yield is %d from cow %s" % (highest,highestcow))
print("The worst weekly yield is %d from cow %s" % (lowest,lowestcow))