mirror of
https://github.com/TheAlgorithms/Python.git
synced 2024-12-18 17:20:16 +00:00
a28ad3f759
* Added excel column title to number algorithm as part of conversions * Renamed file to better reflect algorithm function * Removed duplicate file * Update excel_title_to_column.py * Update excel_title_to_column.py Co-authored-by: John Law <johnlaw.po@gmail.com>
34 lines
711 B
Python
34 lines
711 B
Python
def excel_title_to_column(column_title: str) -> int:
|
|
"""
|
|
Given a string column_title that represents
|
|
the column title in an Excel sheet, return
|
|
its corresponding column number.
|
|
|
|
>>> excel_title_to_column("A")
|
|
1
|
|
>>> excel_title_to_column("B")
|
|
2
|
|
>>> excel_title_to_column("AB")
|
|
28
|
|
>>> excel_title_to_column("Z")
|
|
26
|
|
"""
|
|
assert column_title.isupper()
|
|
answer = 0
|
|
index = len(column_title) - 1
|
|
power = 0
|
|
|
|
while index >= 0:
|
|
value = (ord(column_title[index]) - 64) * pow(26, power)
|
|
answer += value
|
|
power += 1
|
|
index -= 1
|
|
|
|
return answer
|
|
|
|
|
|
if __name__ == "__main__":
|
|
from doctest import testmod
|
|
|
|
testmod()
|