An Excel sheet is two-dimensional – it has rows and columns. By default, row headers in Excel are numbers, and column headers are alphabets. As the data in your Excel sheet starts to grow in width, the number of columns grows. And this might make it difficult for you to track down ...
publicinttitleToNumber(Strings){char[]c=s.toCharArray();intres=0;intmul=1;for(inti=c.length-1;i>=0;i--){res=res+mul*(c[i]-'A'+1);mul*=26;}returnres;} c[i] - 'A' + 1这里字符做差,就相当于 ASCII 码对应的数字做差,从而算出当前字母对应的数字。 解法二 上边是比较直接的解法...
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 ... Example 1: Input: "A" Output: 1 Example 2: Input: "AB" Output: 28 Example 3: Input: "ZY" Output: 701...
1. Excel Sheet Column Number Related to questionExcel Sheet Column Title 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 1classSolution {2public:3inttitleToNumber(strin...
给定excel表的列头,返回对应的列数目。 For example: A -> 1 B -> 2 C -> 3 ... Z -> 26 AA -> 27 AB -> 28 Solution: 表单列头问题的逆向运算。 classSolution(object):deftitleToNumber(self,s):""" :type s: str :rtype: int ...
Excel Sheet Column Number 这道题真是让我伤心。。。看到有大神说这道题简直侮辱智商我就勇敢的一战。。结果发现智商不合格,什么都看不出来 拜读了一下答案,这题其实水很深啊,设计了 进制的知识点。还有char 与 int的转换。 offset的计算: s.charAt(i) 这个字符与'A'的 相差值。+1 是因为 "A"我们要让...
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 ... Example 1: Input: "A" Output: 1 Example 2: Input: "AB" Output: 28 Example 3: Input: "ZY" Output: 701...
LeetCode之Excel Sheet Column Number 1、题目 Related to questionExcel Sheet Column Title Given a column title as appear in an Excel sheet, return its corresponding column number. For example: 代码解读 A -> 1 B -> 2 C -> 3 ...
Z -> 26 AA -> 27 AB -> 28 看成26进制和10进制之间的转换,Excel Sheet Column Title这道题的逆过程 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 1 public class Solution { 2 public int titleToNumber(String s) { 3 int result = 0; ...
LeetCode笔记:171. Excel Sheet Column Number 题目: Related to question Excel Sheet Column Title 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...