Leetcode 171. Excel Sheet Column Number
2018-02-25 14:08
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原题:
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
解决方法:
相当于一个26进制的字符串转换成数字。
代码:
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
解决方法:
相当于一个26进制的字符串转换成数字。
代码:
int titleToNumber(string s) { int res = 0; for(auto ch: s){ res = res * 26 + (ch - 'A' + 1); } return res; }
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