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leetcode 171: Excel Sheet Column Number
Excel Sheet Column Number
Total Accepted: 1643 Total Submissions: 3860Related 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 public class Solution {
public int titleToNumber(String s) {
if(s==null || s.length()== 0) return 0;
int sum = 0;
for(int i=0; i<s.length(); i++) {
sum = 26*sum + s.charAt(i) - 'A' + 1;
}
return sum;
}
}
leetcode 171: Excel Sheet Column Number
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