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Anthonyx82
Asked: 2022-10-15 07:32:23 +0800 CST 2022-10-15 07:32:23 +0800 CST

How do I make all the numbers in an array subtract?

  • 772

Hello, I would like to do something so you can help me since I have been searching and I can't find any function that subtracts the elements of an array

array1 = [1, 5, 2]
resta = restar elementos de array1 = 5 - 2 - 1
resta = 2
python

1 Answers

  1. Best Answer

    If you want to subtract from the largest number to the smallest number, you would first have to order the elements of the array from largest to smallest, you can do this with the method sort(reverse=True):

    array1 = [1, 5, 2]
array1.sort(reverse=True)
print(array1)

# [5, 2, 1]

    Now, to this last result, you could apply the method reduce()to subtract the elements of the array. To do this, you should import the package functools, your code would be like this:

    import functools

array1 = [1, 5, 2]
array1.sort(reverse=True)
print(functools.reduce(lambda a, b: a - b, array1))

# 2

    Links:

    sort(): https://j2logo.com/python/sort-a-list-in-python/

    reduce(): https://www.geeksforgeeks.org/reduce-in-python/

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