标签：
Only trick is the ‘Z‘. Because when the number % 26 == 0, means there is a ‘Z‘. But when you n/=26, there is an extra 1 added to the n. EX:
27 % 26 = 1, 27 / 26 = 1 == > AA
26 % 26 = 0, 26 / 26 = 1 Here this extra one need to be removed. You can imagine that ‘Z‘ becomes next around of the loop.
1 class Solution { 2 public: 3 string convertToTitle(int n) { 4 string result; 5 while (n > 0) { 6 int tmp = n%26; 7 n /= 26; 8 if (tmp == 0) { 9 result = ‘Z‘ + result; 10 n--; 11 } else { 12 result = char(tmp + ‘A‘ - 1) +result; 13 } 14 } 15 return result; 16 } 17 };
LeetCode – Refresh – Exceel Sheet Column Title
标签：
原文地址：http://www.cnblogs.com/shuashuashua/p/4349459.html
