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Python: Rearrange positive and negative numbers in a given array using Lambda

Python Lambda: Exercise-12 with Solution

Write a Python program to rearrange positive and negative numbers in a given array using Lambda.

Sample Solution:

Python Code :

array_nums = [-1, 2, -3, 5, 7, 8, 9, -10]
print("Original arrays:")
print(array_nums)
result = sorted(array_nums, key = lambda i: 0 if i == 0 else -1 / i)
print("\nRearrange positive and negative numbers of the said array:")
print(result)

Sample Output:

Original arrays:
[-1, 2, -3, 5, 7, 8, 9, -10]

Rearrange positive and negative numbers of the said array:
[2, 5, 7, 8, 9, -10, -3, -1]

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Previous: Write a Python program to find intersection of two given arrays using Lambda.
Next: Write a Python program to count the even, odd numbers in a given array of integers using Lambda.

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Python: Tips of the Day

Converts a string to snake case

Example:

from re import sub

def tips_snake(s):
  return '_'.join(
    sub('([A-Z][a-z]+)', r' \1',
    sub('([A-Z]+)', r' \1',
    s.replace('-', ' '))).split()).lower()

print(tips_snake('sentenceCase'))
print(tips_snake('python tutorial'))
print(tips_snake('the-quick_brown Fox jumps_over-the-lazy dog'))
print(tips_snake('PackMy-box with'))

Output:

sentence_case
python_tutorial
the_quick_brown_fox_jumps_over_the_lazy_dog
pack_my_box_with