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Python Implement function swapFL() that takes a list as input and swaps the first and last...

Python

Implement function swapFL() that takes a list as input and swaps the first and last ele- ments of the list. You may assume the list will be nonempty. The function should return the new list.

>>> ingredients = ['flour', 'sugar', 'butter', 'apples']

>>> swapFL(ingredients)

>>> ingredients

['apples', 'sugar', 'butter', 'flour']

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Answer #1


def swapFL(ingredients):
#get length of list
i=len(ingredients)
  
#swap fiirst and last value
temp=ingredients[0]
ingredients[0]=ingredients[i-1]
ingredients[i-1]=temp
ingredients = ['flour', 'sugar', 'butter', 'apples']

print("Before swap ",ingredients)

#function call
swapFL(ingredients)
print("After swap ",ingredients)

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