fruit_into_baskets.py (1330B)
| # 904. Fruit Into Baskets
"""
you are visiting a farm that has a single row of fruit trees arranged from
left t oright. the trees are represented by an integer array 'fruits' where
'fruits[i]' is the type of fruit the i'th tree produces. you want to collect
as much fruit as possible. however, the owner has some strict rules that you
must follow: you can only have two baskets and each can only hoold a single
type of fruit (unlimited quantity). starting from any tree, you must pick
exacty one fruit from every tree while moving to the right. once you reach a
tree with fruit that cannot fit in your baskets, you must stop. given the int
array 'fruits', return the maximum number of fruits you can pick
"""
class Solution(object):
def totalFruit(self, fruits):
"""
:type fruits: List[int]
:rtype: int
"""
cnt, i = {}, 0
for j, v in enumerate(fruits):
cnt[v] = cnt.get(v, 0) + 1
if len(cnt) > 2:
cnt[fruits[i]] -= 1
if cnt[fruits[i]] == 0:
del cnt[fruits[i]]
i += 1
return j - i + 1
if __name__ == "__main__":
obj = Solution()
print(obj.totalFruit(fruits=[1, 2, 1]))
print(obj.totalFruit(fruits=[0, 1, 2, 2]))
print(obj.totalFruit(fruits=[1, 2, 3, 2, 2]))
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