Python: Find the product of the units digits in the numbers
Python Programming Puzzles: Exercise-53 with Solution
Write a Python program to find the product of the units digits in the numbers of a given list.
Input: [12, 23] Output: 6 Input: [12, 23, 43] Output: 18 Input: [113, 234] Output: 12 Input: [1002, 2005] Output: 10
Pictorial Presentation:

Sample Solution-1:
Python Code:
#License: https://bit.ly/3oLErEI
def test(nums):
return eval('*'.join([str(x % 10) for x in nums]))
nums = [12, 23]
print("Original list of numbers:")
print(nums)
print("Product of the units digits in the numbers of the said:")
print(test(nums))
nums = [12, 23, 43]
print("\nOriginal list of numbers:")
print(nums)
print("Product of the units digits in the numbers of the said:")
print(test(nums))
nums = [113, 234]
print("\nOriginal list of numbers:")
print(nums)
print("Product of the units digits in the numbers of the said:")
print(test(nums))
nums = [1002, 2005]
print("\nOriginal list of numbers:")
print(nums)
print("Product of the units digits in the numbers of the said:")
print(test(nums))
Sample Output:
Original list of numbers: [12, 23] Product of the units digits in the numbers of the said: 6 Original list of numbers: [12, 23, 43] Product of the units digits in the numbers of the said: 18 Original list of numbers: [113, 234] Product of the units digits in the numbers of the said: 12 Original list of numbers: [1002, 2005] Product of the units digits in the numbers of the said: 10
Flowchart:

Visualize Python code execution:
The following tool visualize what the computer is doing step-by-step as it executes the said program:
Sample Solution-2:
Python Code:
#License: https://bit.ly/3oLErEI
def test(nums):
prod = 1
for n in nums:
prod *= abs(n % 10)
return prod
nums = [12, 23]
print("Original list of numbers:")
print(nums)
print("Product of the units digits in the numbers of the said:")
print(test(nums))
nums = [12, 23, 43]
print("\nOriginal list of numbers:")
print(nums)
print("Product of the units digits in the numbers of the said:")
print(test(nums))
nums = [113, 234]
print("\nOriginal list of numbers:")
print(nums)
print("Product of the units digits in the numbers of the said:")
print(test(nums))
nums = [1002, 2005]
print("\nOriginal list of numbers:")
print(nums)
print("Product of the units digits in the numbers of the said:")
print(test(nums))
Sample Output:
Original list of numbers: [12, 23] Product of the units digits in the numbers of the said: 6 Original list of numbers: [12, 23, 43] Product of the units digits in the numbers of the said: 18 Original list of numbers: [113, 234] Product of the units digits in the numbers of the said: 12 Original list of numbers: [1002, 2005] Product of the units digits in the numbers of the said: 10
Flowchart:

Visualize Python code execution:
The following tool visualize what the computer is doing step-by-step as it executes the said program:
Python Code Editor :
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Previous: Reverse the case of all strings. For those strings, which contain no letters, reverse the strings.
Next: Remove duplicates from a list of integers, preserving order.
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Python: Tips of the Day
Clamps num within the inclusive range specified by the boundary values x and y:
Example:
def tips_clamp_num(num,x,y): return max(min(num, max(x, y)), min(x, y)) print(tips_clamp_num(2, 4, 6)) print(tips_clamp_num(1, -1, -6))
Output:
4 -1
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