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First solution in Clear category for Excel Column Number by mortonfox
from functools import reduce
def column_number(name: str) -> int:
return reduce(lambda col, c: col * 26 + ord(c) - ord('A') + 1, name, 0)
print("Example:")
print(column_number("AA"))
assert column_number("A") == 1
assert column_number("Z") == 26
assert column_number("AB") == 28
assert column_number("ZY") == 701
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Nov. 26, 2021
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