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Not first, not second, not third solution in Speedy category for Excel Column Number by swagg010164
def column_number(name: str) -> int:
alphabet = {chr(65 + i - 1): i for i in range(1, 27)}
ans = 0
for ind, char in enumerate(name):
ans += alphabet[char]*26**(len(name) - ind - 1)
return ans
Nov. 13, 2022