56 lines
1.3 KiB
Rust
56 lines
1.3 KiB
Rust
use std::env;
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use std::fs;
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use std::process;
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//use std::{thread, time};
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fn main() {
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//println!("Hello world!");
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let args: Vec<String> = env::args().collect();
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let path: String;
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if args.len() > 1 {
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path = args[1].clone();
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} else {
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println!("Specify an input file!");
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process::exit(1);
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}
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if ! fs::metadata(path.clone()).is_ok() {
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println!("Path does not exist!");
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process::exit(1);
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}
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//let rawInput = fs::read_to_string(path.clone()).unwrap();
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//let splitInput: Vec<&str> = rawInput.lines().collect();
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let mut left: Vec<i32> = vec![];
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let mut right: Vec<i32> = vec![];
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for line in fs::read_to_string(path.clone()).unwrap().lines() {
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//let line = splitInput[i];
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let split: Vec<&str> = line.split(" ").collect();
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//println!("{}",split[0]);
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left.push(split[0].parse().unwrap());
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right.push(split[1].parse().unwrap());
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}
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left.sort();
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//left.dedup();
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right.sort();
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//right.dedup();
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let mut accum: i32 = 0;
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for i in 0..right.len() {
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//println!("{}, {}", left[i], right[i]);
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//println!("Distance is {}", (right[i] - left[i]).abs());
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accum += (right[i] - left[i]).abs();
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//thread::sleep(time::Duration::from_millis(1000));
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}
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println!("Answer: {}", accum);
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}
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