Question: 
Write a function to find maximum of three numbers.


Model's Code:
def max_of_three(a, b, c):
    return max(a, b, c)



Sample Correct Code:
def max_of_three(num1,num2,num3): 
    if (num1 >= num2) and (num1 >= num3):
       lnum = num1
    elif (num2 >= num1) and (num2 >= num3):
       lnum = num2
    else:
       lnum = num3
    return lnum


Asserts:
assert max_of_three(10,20,30)==30
assert max_of_three(55,47,39)==55
assert max_of_three(10,49,30)==49


Tests:
Test 1 of 3: PASS
Test 2 of 3: PASS
Test 3 of 3: PASS

Test 672 of 974: 503/672 (74.85119047619048%): success