Exercise 2

write python algorithm to swap the first element with the last element of given list. Example: if L =

["Python" , "Java" , "C++" , "Javascript"]

, the algorithm returns the list:

["Javascript",  "Java" , "C++" , "Python"]


def swapList(L):
# getting the last element of list
swap = L[-1]

# replace the last element by the first element of list
L[-1] = L[0]

# relace the first element by the last element
L[0] = swap
return L

# Example
L = L = ["Python" , "Java" , "C++" , "Javascript"]
# The output is : ['Javascript', 'Java', 'C++', 'Python']

Younes Derfoufi

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