categories: [Blog,Algorithm]

168. Excel表列名称

难度简单317
给定一个正整数，返回它在 Excel 表中相对应的列名称。
例如，
1 -> A
2 -> B
3 -> C
…
26 -> Z
27 -> AA
28 -> AB
…

示例 1:
输入: 1
输出: “A”

示例 2:
输入: 28
输出: “AB”

示例 3:
输入: 701
输出: “ZY”.

  1. class Solution {
  2.     public String convertToTitle(int n) {
  3.         StringBuilder sb = new StringBuilder();
  4.         while (n > 0) {
  5.             int c = (n-1)% 26;
  6.             sb.insert(0, (char) ('A' + c));
  7.             n = (n-1)/26;
  8.         }
  9.         return sb.toString();
  10. // 作者：windliang
  11. // 链接：https://leetcode-cn.com/problems/excel-sheet-column-title/solution/xiang-xi-tong-su-de-si-lu-fen-xi-by-windliang-2/
  12.     }
  13. }

image.png
https://leetcode-cn.com/problems/excel-sheet-column-title/solution/xiang-xi-tong-su-de-si-lu-fen-xi-by-windliang-2/
https://leetcode-cn.com/problems/excel-sheet-column-title/solution/168-by-ikaruga/
https://leetcode-cn.com/problems/excel-sheet-column-title/solution/guan-yu-n-de-li-jie-by-douya0808/