Python program to interchange first and last elements in a list?
#Python program to interchange first and last elements in a list
#Swapping Function Thank you for watching
def output(lst):
l=len(lst)
#Swapping
t = lst[0]
lst[0] = lst[l-1]
lst[l-1] = t
return lst
lst = [9,10,11,14,17,19]
print(output(lst))
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