Count the Jewels
Imagine you have a bag of stones, and a separate list tells you which stone types are jewels. Given a string jewels with the jewel types and a string stones with the stones you have, count how many characters from stones appear in jewels. Return that count.
Примеры
Ввод
"aA", "aAAbbbb"Вывод
3Ввод
"z", "ZZ"Вывод
0Ввод
"abc", "aabbcc"Вывод
6Нужно реализовать
def num_jewels_in_stones(jewels: str, stones: str) -> int:
Теги
stringshashmapset
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