# 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;
}
};

## 2016.5.19——Excel Sheet Column Title

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