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Tuesday, May 25, 2021

Solution Exercise 41: python algorithm which determines the list of integers whose last digit is even and the second is odd
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Exercise 41

Write an algorithm in python that extracts from a list of numbers the sublist of numbers whose last digit is even and the second is odd. Example if: L = [21, 14, 346, 728, 136, 19], the algorithm returns the list: [14, 136]

Solution

def listEvenOdd (L):
     # initialization of the list of numbers including the last even number and the next odd number
     lEventOdd = []
     for n in L:
         # determine the last digit of the number n
          last = n%10
          second = ((n- last) // 10)% 10
          # test if the last digit is even and the scond odd
          if last%2 == 0 and second%2 != 0:
               lEventOdd.append (n)
     return lEventOdd

# Example
L = [21, 14, 346, 728, 136, 19]
print (listEvenOdd (L)) # which displays:  [14, 136]


Younes Derfoufi
my-courses.net

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