#### Exercise 71 **

Write a Python program which determines the minimum digit within a given string s. ** Example** if

**s = “Python3.7 is more power than Python2.7”**, the algorithm must

**returns 2**. We assume that the string s does not contain any negative number.

#### Solution

`def minimumDigit(s):`

# creating and initializing the list of digits

listDigits = []

for x in s:

if x.isdigit():

x = int(x)

listDigits.append(x)

# initializing the minimum of digits

minDigit = listDigits[0]

# iterate over all list elements

for n in listDigits:

if minDigit > n:

minDigit = n

return minDigit

# Example:

s = "Python3.7 is more power than Python2.7"

print("The minimum digit within s is : ", minimumDigit(s))

# The output is : The minimum digit within s is : 2

**Younes Derfoufi**

my-courses.net

my-courses.net