数字转表格标题 Excel Sheet Column Title

#include<string>
using namespace std;
class Solution {
public:
   string convertToTitle(int n) {
         string res;
         if(n<=0) return "";
       while(n)
    {
      res+=(n-1)%26+‘A‘;   //[n-1]这里一定要想明白了,注意头尾两个数据的验证
      n=(n-1)/26;
    }
    reverse(res.begin(),res.end());
    return res;
  }
};

时间: 07-16

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