Question

How to generate all possible permutations and combinations of a list of chars in Python

Answer 1

from itertools import permutations, combinations

def main():
    input_chars = ['a', 'b', 'c']

    print("All permutations:")
    for p in permutations(input_chars):
        print(" ".join(p))

    print("\nAll combinations:")
    size = len(input_chars)
    for r in range(1, size + 1):  # combinations of size 1..n
        for ch in combinations(input_chars, r):
            print(" ".join(ch))

if __name__ == "__main__":
    main()



'''
run:

All permutations:
a b c
a c b
b a c
b c a
c a b
c b a

All combinations:
a
b
c
a b
a c
b c
a b c

'''

 

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