Python: Generate the unique combinations

Last update on March 29 2025 13:02:44 (UTC/GMT +8 hours)

27. Unique Color Combinations

Create a Python program that chooses a specified number of colors from three different colors and generates unique combinations.

Sample Solution:

Python Code:

from itertools import combinations 
def unique_combinations_colors(list_data, n):
    return [" and ".join(items) for items in combinations(list_data, r=n)]
colors = ["Red","Green","Blue"]
print("Original List: ",colors)
n=1
print("\nn = 1")
print(list(unique_combinations_colors(colors, n)))
n=2
print("\nn = 2")
print(list(unique_combinations_colors(colors, n)))
n=3
print("\nn = 3")
print(list(unique_combinations_colors(colors, n)))

Sample Output:

Original List:  ['Red', 'Green', 'Blue']

n = 1
['Red', 'Green', 'Blue']

n = 2
['Red and Green', 'Red and Blue', 'Green and Blue']

n = 3
['Red and Green and Blue']

For more Practice: Solve these Related Problems:

• Write a Python program to choose a specified number of colors from three given options and generate unique combinations without repetition.
• Write a Python program to generate all possible unique combinations of colors from three different sets, then filter by a custom rule.
• Write a Python program to use itertools.combinations_with_replacement to select colors and then remove duplicate arrangements.
• Write a Python program to generate combinations from three color sets and then sort the results lexicographically to ensure uniqueness.

Python Code Editor:

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