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- # TODO: opravit tuto funkci
- def find_substring(string: str, substring: str) -> int:
- """Funkce hleda podretezec (substring) v retezci (string).
- Pokud se podretezec v retezci nachazi, vrati index prvniho vyskytu.
- Jinak vraci -1.
- """
- if len(substring) > len(string):
- return -1
- j = 0
- i = 0
- while i < len(string):
- if string[i] == substring[j]:
- if j == len(substring) - 1:
- return i - j
- j += 1
- i += 1
- return -1
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