Python: Permutations of specified elements, drawn from specified values

Last update on April 22 2025 12:51:23 (UTC/GMT +8 hours)

14. Specified Element Permutations

Write a Python program to generate permutations of specified elements drawn from specified values.

Sample Solution:

Python Code:

from itertools import product 

def permutations_colors(inp, n):
    for x in product(inp, repeat=n):
        c = ''.join(x)
        print(c,end=', ')

str1 = "Red"
print("Original String: ",str1)
print("Permutations of specified elements, drawn from specified values:")
n=1
print("\nn = 1")
permutations_colors(str1,n)
n=2
print("\nn = 2")
permutations_colors(str1,n)
n=3
print("\nn = 3")
permutations_colors(str1,n)

lst1 = ["Red","Green","Black"]
print("\n\nOriginal list: ",lst1)
print("Permutations of specified elements, drawn from specified values:")
n=1
print("\nn = 1")
permutations_colors(lst1,n)
n=2
print("\nn = 2")
permutations_colors(lst1,n)
n=3
print("\nn = 3")
permutations_colors(lst1,n)

Sample Output:

Original String:  Red
Permutations of specified elements, drawn from specified values:

n = 1
R, e, d, 
n = 2
RR, Re, Rd, eR, ee, ed, dR, de, dd, 
n = 3
RRR, RRe, RRd, ReR, Ree, Red, RdR, Rde, Rdd, eRR, eRe, eRd, eeR, eee, eed, edR, ede, edd, dRR, dRe, dRd, deR, dee, ded, ddR, dde, ddd, 

Original list:  ['Red', 'Green', 'Black']
Permutations of specified elements, drawn from specified values:

n = 1
Red, Green, Black, 
n = 2
RedRed, RedGreen, RedBlack, GreenRed, GreenGreen, GreenBlack, BlackRed, BlackGreen, BlackBlack, 
n = 3
RedRedRed, RedRedGreen, RedRedBlack, RedGreenRed, RedGreenGreen, RedGreenBlack, RedBlackRed, RedBlackGreen, RedBlackBlack, GreenRedRed, GreenRedGreen, GreenRedBlack, GreenGreenRed, GreenGreenGreen, GreenGreenBlack, GreenBlackRed, GreenBlackGreen, GreenBlackBlack, BlackRedRed, BlackRedGreen, BlackRedBlack, BlackGreenRed, BlackGreenGreen, BlackGreenBlack, BlackBlackRed, BlackBlackGreen, BlackBlackBlack,

For more Practice: Solve these Related Problems:

Write a Python program to generate permutations of a specified subset of elements drawn from a given list using itertools.permutations.
Write a Python program to create an iterator that produces permutations of selected elements and then filters out those that are not in lexicographical order.
Write a Python program to generate all permutations of specified elements and then map a function that converts each permutation into a dash-separated string.
Write a Python program to generate permutations for a given set of elements and then reverse each permutation using a custom lambda.

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Python Code Editor:

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