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Python: Find the maximum and minimum values in a given list within specified index range

Python List: Exercise - 151 with Solution

Write a Python program to find the maximum and minimum values in a given list within specified index range.

Sample Solution:

Python Code:

def reverse_list_of_lists(nums,lr,hr):
    temp = []
    for idx, el in enumerate(nums):
        if idx >= lr and idx < hr:
            temp.append(el)
    result_max = max(temp) 
    result_min = min(temp) 
    return result_max, result_min
nums = [4,3,0,5,3,0,2,3,4,2,4,3,5]
print("Original list:")
print(nums)
print("\nIndex range:")
lr = 3
hr = 8
print(lr,"to",hr)
print("\nMaximum and minimum values of the said given list within index range:")
print(reverse_list_of_lists(nums,lr,hr))

Sample Output:

Original list:
[4, 3, 0, 5, 3, 0, 2, 3, 4, 2, 4, 3, 5]

Index range:
3 to 8

Maximum and minimum values of the said given list within index range:
(5, 0)

Flowchart:

Flowchart: Find the maximum and minimum values in a given list within specified index range.

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Previous: Write a Python program to reverse a given list of lists.
Next: Write a Python program to combine two given sorted lists using heapq module.

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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