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umbrella Challenge
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| def umbrella_count(people, umbrellas, store={}): | |
| if people in store: return store[people] | |
| if people < 0: return None | |
| if people == 0: return [] | |
| shortest = None | |
| for umb in umbrellas: | |
| remainder = people - umb | |
| result = umbrella_count(remainder, umbrellas, store) | |
| if result is not None: | |
| combination =[*result, umb] | |
| store[people] = combination | |
| if not shortest or (len(shortest) > len(combination)): | |
| shortest = combination | |
| return shortest | |
| def solution(people, umbrellas): | |
| count = umbrella_count(people, umbrellas) | |
| print(count) | |
| if count: return len(count); | |
| else: return -1 | |
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wow