#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.be…

题目描述: Excel Sheet Column Title 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 Excel Sheet Column Number Related to question Exc…

Excel Sheet Column Title 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 注意,这题的数字不是从0开始,而是从1开始,我开始的时候用10进制的方式进行转换,发现不对.所以在程序里,用了…

Excel Sheet Column Title 本题收获: 1.由int型转换为整型(string),如何转化, res = 'A'+(n-1)%26和之前由A-z转化为十进制相反,res = s[i]-'A'+1.(为什么有+1,-1还有点迷糊,貌似是十进制是0-9,26进制是) 2.十进制到26进制转化 题目: Given a positive integer, return its corresponding column title as appear in an Excel shee…

Given a column title as appear in an Excel sheet, return its corresponding column number. For example: A -> 1    B -> 2    C -> 3    ...    Z -> 26    AA -> 27    AB -> 28 class Solution { public: int titleToNumber(string s) { ; ; ; i &l…

Excel Sheet Column Title Given a non-zero 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 类似于数制转换,只不过1对应A,而不是0对应A class Solution { publi…

Excel Sheet Column Title 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 Java实现: public static String convertToTitle(int n) { St…

Excel Sheet Column Title 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 C++版: class Solution { public: string convertToTitle(in…

168. Excel表列名称 168. Excel Sheet Column Title 题目描述 给定一个正整数,返回它在 Excel 表中相对应的列名称. LeetCode168. Excel Sheet Column Title 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"…

168. Excel Sheet Column Title Easy 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 ... Example 1: Input: 1 Output: "A"…