Enable Javascript in your browser and then refresh this page, for a much enhanced experience.
oneline simple solution in Clear category for Second Index by tamagoyaki
def second_index(text: str, symbol: str) -> int | None:
return text[(i := text.find(symbol)+1):].find(symbol)+i if text.count(symbol)>=2 else None
print("Example:")
print(second_index("sims", "s"))
# These "asserts" are used for self-checking
assert second_index("sims", "s") == 3
assert second_index("find the river", "e") == 12
assert second_index("hi", " ") == None
assert second_index("hi mayor", " ") == None
assert second_index("hi mr Mayor", " ") == 5
print("The mission is done! Click 'Check Solution' to earn rewards!")
Sept. 27, 2023
Comments:
