Solution Exercise 72 : python program to examin if an occurrence is present within a given string

Exercise 72 **

Write a python algorithm to examine if an occurrence is present within a given string.

Solution

def examineOccurrence(s , occ):
    # getting the length of the occurrence occ and the len of the string s 
    m = len(occ)
    n = len(s)
    
    # initialize counter 
    counter = 0
    # searching the occurrence occ within the string s
    for i in range(0 , n-m):
        if s[i : m + i] == occ:
            counter = counter + 1
    if counter > 0:
        return True
    else:
        return False
    
# Example:
s = "Python is the most popular programming language"
occ1 = "most"
occ2 = "algorithm"
print(examineOccurrence(s, occ1)) # display: True
print(examineOccurrence(s, occ2)) # display: False