Every Friday and Saturday night, farmer counts amount of sheep returned back to his farm (sheep returned on Friday stay and don't leave for a weekend).

Sheep return in groups each of the days -> you will be given two arrays with these numbers (one for Friday and one for Saturday night). Entries are always positive ints, higher than zero.

Farmer knows the total amount of sheep, this is a third parameter. You need to return the amount of sheep lost (not returned to the farm) after final sheep counting on Saturday.

Example 1: Input: {1, 2}, {3, 4}, 15 --> Output: 5

Example 2: Input: {3, 1, 2}, {4, 5}, 21 --> Output: 6

Good luck! :-)

Source: codewars | Difficulty: EASY
Tags: Matrices

Fundamentals

Mathematics

Starter code: def lostSheep(friday,saturday,total):
	

Solutions:
def lostSheep(friday, saturday, total):
	return total - sum(friday + saturday)


def lostSheep(friday, saturday, total):
	fritag = 0
	for number in friday:
		fritag = fritag + number
	samstag = 0
	for number in saturday:
		samstag = samstag + number
	return int(str(total)) - (fritag + samstag)


def lostSheep(friday, saturday, total):
	sheep = 0
	for num in friday:
		sheep += num
	for num in saturday:
		sheep += num
	return total - sheep


def lostSheep(friday, saturday, total):
	sheeps = 0
	for i in range(len(friday)):
		sheeps += friday[i]
	for i in range(len(saturday)):
		sheeps += saturday[i]
	return total - sheeps


def lostSheep(friday, saturday, total):
	weekend_total = sum(friday) + sum(saturday)
	difference = total - weekend_total
	return difference