In Python, we can use the built-in permutations
function from the itertools
module to compute all the permutations of a string.
This function generates all the possible arrangements of a sequence, which includes all possible orderings of the elements in the sequence.
Here is an example Python program that computes all the permutations of a given string:
from itertools import permutations def permute_string(string): # Generate all permutations of the string perms = permutations(string) # Print each permutation for perm in perms: print(''.join(perm)) # Test the function permute_string('abc')
In this program, we first import the permutations
function from the itertools
module.
We then define a function called permute_string
that takes a string as its argument.
Inside the permute_string
function, we use the permutations
function to generate all the possible permutations of the input string.
This function returns a generator that yields each permutation as a tuple of characters.
We then loop over the generator and use the join
method to convert each tuple of characters into a string.
Finally, we print each permutation to the console.
To test the function, we call it with the string 'abc'
.
This will generate all the permutations of the string 'abc'
and print them to the console:
abc acb bac bca cab cba
Note that the order of the permutations may vary depending on the implementation of the permutations
function.
Also, the number of permutations grows very quickly with the length of the input string, so be careful when computing permutations of long strings.