Leetcode 168. Excel Sheet Column Title

Tyan

发布于 2021-02-05 11:31:56

2280

发布于 2021-02-05 11:31:56

文章被收录于专栏：SnailTyan

文章作者：Tyan 博客：noahsnail.com | CSDN | 简书

1. Description

2. Solution

Version 1

class Solution:
    def convertToTitle(self, n):
        result = ''
        mapping = [chr(65+i) for i in range(0, 26)]

        while n:
            remainder = n % 26
            quotient = n // 26
            result = mapping[remainder - 1] + result
            if remainder == 0:
                quotient -= 1
            n = quotient

        return result

Version 2

class Solution:
    def convertToTitle(self, n):
        result = ''
        mapping = [chr(65+i) for i in range(0, 26)]
        while n:
            remainder = n % 26
            n = (n - 1) // 26
            result = mapping[remainder - 1] + result

        return result

Version 3

class Solution:
    def convertToTitle(self, n):
        result = ''
        mapping = [chr(65+i) for i in range(0, 26)]
        while n:
            result = mapping[n % 26 - 1] + result
            n = (n - 1) // 26
        return result