Kate and Michael want to buy a pizza and share it. Depending on the price of the pizza, they are going to divide the costs:

* If the pizza is less than €5,- Michael invites Kate, so Michael pays the full price.
* Otherwise Kate will contribute 1/3 of the price, but no more than €10 (she's broke :-) and Michael pays the rest.

How much is Michael going to pay? Calculate the amount with two decimals, if necessary.

Difficulty: EASY
Starter code: def michael_pays(costs):
	

Solutions:
def michael_pays(cost):
	return round(cost if cost < 5 else max(cost * 2 / 3, cost - 10), 2)


def michael_pays(c):
	return round(c if c < 5 else c * 2 / 3 if c <= 30 else c - 10, 2)


def michael_pays(costs):
	if costs < 5:
		michael = costs
	else:
		kate = min(costs / 3, 10)
		michael = costs - kate
	return round(michael, 2)


def michael_pays(c):
	return round(max(c if c < 5 else c * 2 / 3, c - 10), 2)


def michael_pays(costs):
	return round(costs - (costs >= 5) * min(costs / 3.0, 10), 2)


def michael_pays(costs):
	if costs < 5:
		return round(costs, 2)
	else:
		return round(max(costs - 10, 2 / 3 * costs), 2)


def michael_pays(costs):
	return round(costs - min(0 if costs < 5 else 10, costs / 3), 2)


def michael_pays(costs):
	micheal = 0
	if costs < 5:
		micheal = costs
	elif 1 / 3 * costs > 10:
		micheal = costs - 10
	else:
		micheal = costs - 1 / 3 * costs
	try:
		if isinstance(micheal, float):
			micheal = float('{0:.2f}'.format(micheal))
	except:
		micheal = micheal
	return micheal