def checkio(*args): while(args != ''): numbermax = max(args) numbermin = min(args) return numbermax-numbermin return 0

These "asserts" using only for self-checking and not necessary for auto-testing

if name == 'main': def almostequal(checked, correct, significantdigits): precision = 0.1 ** significant_digits return correct - precision < checked < correct + precision

assert almost_equal(checkio(1, 2, 3), 2, 3), "3-1=2"
assert almost_equal(checkio(5, -5), 10, 3), "5-(-5)=10"
assert almost_equal(checkio(10.2, -2.2, 0, 1.1, 0.5), 12.4, 3), "10.2-(-2.2)=12.4"
assert almost_equal(checkio(), 0, 3), "Empty"
print("Coding complete? Click 'Check' to review your tests and earn cool rewards!")