32 lines
793 B
Rust
32 lines
793 B
Rust
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use std::io::{BufRead, BufReader};
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use std::fs::File;
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fn main (){
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// let filename = "../1/input_example.txt";
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let filename = "../1/input.txt";
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let file = BufReader::new(File::open(filename).expect("Unable to open file"));
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let mut accum: u32 = 0;
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let mut list1: Vec<u32> = vec![];
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let mut list2: Vec<u32> = vec![];
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for line in file.lines() {
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let wline = line.unwrap();
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let nums: Vec<&str> = wline.split(' ')
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.filter(|&x| !x.is_empty())
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.collect();
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list1.push(nums[0].parse().unwrap());
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list2.push(nums[1].parse().unwrap());
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}
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list1.sort();
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list2.sort();
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let zlist = list1.into_iter().zip(list2);
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for t in zlist {
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accum += t.0.abs_diff(t.1);
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}
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println!("{}", accum);
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}
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