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Python: Find the pairs of maximum and minimum product from a given list, use itertools module

Python Itertools: Exercise-33 with Solution

Write a Python program to find the pairs of maximum and minimum product from a given list. Use itertools module.

Sample Solution:

Python Code:

import itertools as it
def list_max_min_pair(nums):
    result_max = max(it.combinations(nums, 2), key = lambda sub: sub[0] * sub[1])
    result_min = min(it.combinations(nums, 2), key = lambda sub: sub[0] * sub[1])
    return result_max, result_min

nums = [2,5,8,7,4,3,1,9,10,1]   
print("The original list: ") 
print(nums)
print("\nPairs of maximum and minimum product from the said list:")
print(list_max_min_pair(nums))

Sample Output:

The original list: 
[2, 5, 8, 7, 4, 3, 1, 9, 10, 1]

Pairs of maximum and minimum product from the said list:
((9, 10), (1, 1))

Python Code Editor:


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Python: Tips of the Day

Find current directory and file's directory:

To get the full path to the directory a Python file is contained in, write this in that file:

import os 
dir_path = os.path.dirname(os.path.realpath(__file__))

(Note that the incantation above won't work if you've already used os.chdir() to change your current working directory, since the value of the __file__ constant is relative to the current working directory and is not changed by an os.chdir() call.)

To get the current working directory use

import os
cwd = os.getcwd()

Documentation references for the modules, constants and functions used above:

  • The os and os.path modules.
  • The __file__ constant
  • os.path.realpath(path) (returns "the canonical path of the specified filename, eliminating any symbolic links encountered in the path")
  • os.path.dirname(path) (returns "the directory name of pathname path")
  • os.getcwd() (returns "a string representing the current working directory")
  • os.chdir(path) ("change the current working directory to path")

Ref: https://bit.ly/3fy0R6m