- def getChange(amount, curr, left):
- if sum(curr) == amount:
- return curr
- elif sum(curr) < amount:
- for x in left:
- res = getChange(amount, curr | {x}, left - {x})
- if len(res) > 0:
- return res
- else:
- return set()
- else:
- return set()
- print(getChange(26, set(), regis))