19 lines
404 B
Rust
19 lines
404 B
Rust
pub fn title_to_number(title: String) -> i32 {
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let mut result = 0;
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for (index, character) in title.chars().rev().enumerate() {
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// Convert the character to a number and subtract 9 so A will equal 1.
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let number = character.to_digit(36).unwrap() - 9;
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let n = if index == 0 {
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number
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} else {
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26_u32.pow(index as u32) * number
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};
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result += n;
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}
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result as i32
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}
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