LeetCode Excel Sheet Column Title

Excel Sheet Column Title Total Accepted: 18284 Total Submissions: 103291 My Submissions Question Solution

Given a positive integer, return its corresponding column title as appear in an Excel sheet.

For example:

1 -> A
2 -> B
3 -> C
...
26 -> Z
27 -> AA
28 -> AB

题意很明确。

代码如下：

class Solution {
public:
    string convertToTitle(int n) {
        string t;
        while(n>0)
        {
            t+="ZABCDEFGHIJKLMNOPQRSTUVWXY"[n%26];
            n-=1;//相当于借了一位
            n/=26;
        }
        string result(t.rbegin(),t.rend());
        return result;
    }
};

18 / 18 test cases passed.

Status: Accepted

Runtime: 1 ms

速度也是杠杠的~~