29 lines
716 B
Rust
29 lines
716 B
Rust
use std::env;
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use std::fs;
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use std::collections::HashSet;
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fn main() {
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let input = fs::read_to_string(&env::args().nth(1).unwrap()).unwrap();
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let mut sum: u64 = 0;
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for line in input.lines() {
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let mut left_chars: HashSet<char> = HashSet::new();
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for (i, c) in line.char_indices() {
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if i < line.len()/2 {
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left_chars.insert(c);
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} else if left_chars.contains(&c) {
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if c >= 'a' && c <= 'z' {
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sum += (c as u64) - ('a' as u64) + 1;
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} else {
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sum += (c as u64) - ('A' as u64) + 27;
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}
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break;
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}
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}
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}
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println!("{:?}", sum);
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}
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