LC 0168 [E] Excel Sheet Column Title - ALawliet/algorithms GitHub Wiki
class Solution:
def convertToTitle(self, num):
alphabet = list(string.ascii_uppercase)
res = deque()
while num != 0:
q, r = divmod(num-1, 26) # n-1 for 0-25
res.appendleft(alphabet[r])
num = q
return ''.join(res)