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Exercise 87

Write a Python algorithm as a function which takes as parameter a tuple of two strings (s1, s2) and which returns the list of characters in s1 and not in s2. Example: if s1 = ‘Python language’ and s2 = ‘Java Programming’, the function returns the list:

['y', 't', 'h']

Solution

def differenceS1S2(s1 , s2):
listDifference = []
for x in s1:
if x not in s2 and x not in listDifference:
listDifference.append(x)
return listDifference

s1 = "Python Programming"
s2 = "Java Programming"
print(differenceS1S2(s1 , s2)) # the output is: ['y', 't', 'h']

Younes Derfoufi
my-courses.net

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