# your function should return the maximum value in `my_list`
def max_int_in_list(my_list):
highest = my_list[0]
for num in my_list:
if num > highest:
highest = num
return highest
my_list = [5, 2, -5, 10, 23, -21]
biggest_int = max_int_in_list(my_list)
print (biggest_int)
Step-by-step explanation: