joedougherty/two_item_stack_fib.py

## two_item_stack_fib.py
def f(nth):
    stack = [0, 1]

    for _ in range(nth):
        stack = [stack[1], stack[0]]    # swap
        stack.append(stack[0])          # over
        stack[1] = stack[1] + stack[2]  # +
        stack.pop()

    return stack[1]
	def f(nth):
	stack = [0, 1]

	for _ in range(nth):
	stack = [stack[1], stack[0]] # swap
	stack.append(stack[0]) # over
	stack[1] = stack[1] + stack[2] # +
	stack.pop()

	return stack[1]