Dec-25 Excel Sheet Column Number

[chenye-814]

https://leetcode.com/problems/excel-sheet-column-number/description/

[chenye-814]

view code

```rust impl Solution { pub fn title_to_number(column_title: String) -> i32 { column_title .bytes() .map(|x| (x - b'A' + 1) as i32) .fold(0, |acc, x| acc * 26 + x) } } ```