29 lines
577 B
Rust
29 lines
577 B
Rust
use std::error;
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use std::fs::File;
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use std::io::BufRead;
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use std::io::BufReader;
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fn main() -> Result<(), Box<dyn error::Error>> {
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let f = File::open("input.txt")?;
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let reader = BufReader::new(f);
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let mut sums: Vec<u32> = Vec::new();
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let mut current_sum: u32 = 0;
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for value in reader.lines() {
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let value = value.unwrap();
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if value == "" {
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sums.push(current_sum);
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current_sum = 0;
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} else {
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current_sum += value.parse::<u32>()?;
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}
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}
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sums.push(current_sum);
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sums.sort();
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sums.reverse();
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println!("{:?}", sums[..3].iter().sum::<u32>());
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Ok(())
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}
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