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Friday, April 16, 2021

Solution Exercise 10: python algorithm that returns the position of an element in a given list

Exercise 10

Write an algorithm in python as a function which takes as a parameter a tuple (L, x) formed by a list L and an element x and which returns the position of the element x in the list L. The function must return -1 if element x is not in the list.

Solution

def examinList (L, x):
     if x in L:
          return L.index (x)
     else:
          return -1
    
# Example
L = [13, 9, 5, 23]
x = 5
y = 11
print (examinList (L, x)) # display 2
print (examinList (L, y)) # display -1


Younes Derfoufi
my-courses.net

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Younes Derfoufi

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