#### Exercise 84

96 is an integer whose tens digit is divisible by 3 (property (*)) Given an integer n, write an algorithm in python which returns the list of integers less than or equal to n composed of two digits and checking the property (*)

#### Solution

`# coding: utf-8`

def listDiv3 (n):

# initialization of the list

lDiv3 = []

for i in range (0, n + 1):

# we test if the tens digit q = i//10 is divisible by 3

if (i//10)% 3 == 0 and (i//10) != 0:

lDiv3.append (i)

return lDiv3

# Example

n = 90

print (listDiv3 (n))

# The output is:

#[30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 90]

**Younes Derfoufi**

my-courses.net

my-courses.net