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
Constraints:
1 <= s.length <= 7
s consists only of uppercase English letters.
s is between "A" and "FXSHRXW".
Here is my solution:
class Solution {
public int titleToNumber(String s) {
int result=0;
for(char c:s.toCharArray())
{
int d=(int)(c)-'A'+1;
result=result*26+d;
}
return result;
}
}
This is a LeetCode August Challenge Question
HappyCoding❤️
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