Q:

Python program to sort tuples by their maximum element

belongs to collection: Python Tuple Programs

mahmoud2506
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2022-05-23
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Example:

tuple = ("python", "includehelp", 43, 54.23)

List is a sequence data type. It is mutable as its values in the list can be modified. It is a collection of an ordered set of values enclosed in square brackets [].

Example:

list = [3 ,1,  5, 7]

Sorting Tuples by Their Maximum Element

We have a list of tuples and we need to sort all tuples of the list using the maximum element of the list.

Input:
[(32, 5, 7), (12, 6, 3), (16, 9), (1, 2, 3, 8)]

Output:
[(32, 5, 7), (16, 9), (12, 6, 3), (1, 2, 3, 8)]

We will find the maximum element from the tuples, then sort the tuples of the list using the maximum element.

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All Answers

mahmoud2506
2022-05-23
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Method 1:

One method to solve the problem is by traversing the list and then for each tuple find the maximum value using max(). Then sort the values using the max value.

# Python Program to sort Tuples 
# by Their Maximum Element

def getMaxValTup(tup):
	return max(tup)

# Creating and print tuple list 
tupList = [(32, 5, 7), (12, 6, 3), (16, 9), (1, 2, 3, 8)]
print("Unordered list of tuples : " + str(tupList))

# Sorting the List using sort function
tupList.sort(key = getMaxValTup, reverse = True)

# printing Sorted List of Tuple 
print("Ordered list of tuples : " + str(tupList))

Output:

Unordered list of tuples : [(32, 5, 7), (12, 6, 3), (16, 9), (1, 2, 3, 8)]
Ordered list of tuples : [(32, 5, 7), (16, 9), (12, 6, 3), (1, 2, 3, 8)]

Method 2:

A similar way to solve the task is using the lambda function to find the maximum value instead of using an extra method. Then sort it.

# Python Program to sort Tuples 
# by Their Maximum Element

def getMaxValTup(tup):
	return max(tup)

# Creating and print tuple list 
tupList = [(32, 5, 7), (12, 6, 3), (16, 9), (1, 2, 3, 8)]
print("Unordered list of tuples : " + str(tupList))

# Sorting the List using sort function
tupList.sort(key = lambda tup : max(tup), reverse = True)

# printing Sorted List of Tuple 
print("Ordered list of tuples : " + str(tupList))

Output:

Unordered list of tuples : [(32, 5, 7), (12, 6, 3), (16, 9), (1, 2, 3, 8)]
Ordered list of tuples : [(32, 5, 7), (16, 9), (12, 6, 3), (1, 2, 3, 8)]

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