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Tuesday, September 7, 2021

Solution Exercise 82: Python algorithm which determines the list of words containing at least 2 identical successive characters

Exercise 82

Write a program in Python which determines the list of words containing two successive identical characters in a character string s. Example if s = "Python is the most recommended programming language", the algorithm returns the list
 ["recommended", "programming"].

Solution

# function which tests if a word contains two successive characters
def successive(word):
    # initialization of a counter
    counter = 0
    for i in range (0, len(word) - 1):
        if word [i] == word [i + 1]:
            counter = counter + 1
    if counter == 0:
        return False
    else:
        return True
    
# function which determines the list of words containing at least 2 successive characters
def list_successive(T):
    # convert the string variable T to a list
    L = T.split()
    # initialization of the list of words containing at least 2 successive characters
    list_successives = []
    
    for word in L:
        if successive(word):
            list_successives.append (word)
    return list_successives
    
# Example
word = 'The Python programming language is used by a large community'
print (list_successive(word))
# The output of the program is: ['programming', 'community']


Younes Derfoufi
my-courses.net

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