def sum_cubes(n):
if n <= 0:
if n < 0:
raise ValueError
else:
return 0
else:
return n ** 3 + sum_cubes(n-1)
if __name__ == "__main__":
print sum_cubes(10)

and a non recursive way

def sum_cubes2(n):
if n < 0:
raise ValueError
res = 0
while n:
res += n ** 3
n -= 1
return res

I am working creating a fully encapsulated, homogeneous singly linked data structure. The Listing class and SinglyLinkedList class that are part of the whole application compile fine, but the problem ...

So, I'm relatively new to programming and I'm working on a program that allows for input of grades, course hours, and then calculates GPA based on that. But, I'm going ...