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day1 done

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This commit is contained in:
Anson Biggs 2021-11-30 22:49:21 -07:00
parent aa30dfc940
commit 5f1371412f
1 changed files with 4 additions and 3 deletions
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7
day1/rust/src/main.rs
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@ -3,18 +3,19 @@ use std::fs;
fn main() { fn main() {
let input = fs::read_to_string("../input.txt").expect("Could not read file"); let input = fs::read_to_string("../input.txt").expect("Could not read file");
let lines: Vec<&str> = input.lines().collect(); let lines: Vec<i32> = input.lines().map(|s| s.parse::<i32>().unwrap()).collect();
let mut previous: i32 = 10000; let mut previous: i32 = 10000;
let mut increases = 0; let mut increases = 0;
for line in lines.iter() { for i in 0..lines.len() - 2 {
let current = line.parse::<i32>().unwrap(); let current = lines[i..i + 3].iter().sum();
if previous < current { if previous < current {
increases += 1; increases += 1;
} }
previous = current; previous = current;
// println!("{}", current);
} }
println!("Increases: {}", increases); println!("Increases: {}", increases);