Check if two iterables are permutations of each other
Python, List, String · May 23, 2023
Check if two iterables are permutations of each other.
- Use
lento check if both iterables have the same length. - Use
Counterto verify that each element appears an equal number of times in both iterables.
from collections import Counter
def is_perm(items0, items1):
return len(items0) == len(items1) and Counter(items0) == Counter(items1)is_perm([1, 2, 3], [4, 1, 6]) # False
is_perm([1, 2], [2, 1]) # True
is_perm("dad", "add") # True
is_perm("snack", "track") # False
