From cf6303a5bc1558ebdb7b467da38f74cd3ac3a9b1 Mon Sep 17 00:00:00 2001
From: Santo Cariotti <santo@dcariotti.me>
Date: Mon, 5 Dec 2022 19:46:06 +0100
Subject: Add 2022
---
2021/day1/src/main.rs | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
create mode 100644 2021/day1/src/main.rs
(limited to '2021/day1/src')
diff --git a/2021/day1/src/main.rs b/2021/day1/src/main.rs
new file mode 100644
index 0000000..7e18b94
--- /dev/null
+++ b/2021/day1/src/main.rs
@@ -0,0 +1,21 @@
+use std::fs::File;
+use std::io::prelude::*;
+use std::io::BufReader;
+
+fn main() {
+ let file = File::open("input.txt").expect("File not found");
+ let reader = BufReader::new(file);
+ let values: Vec<i32> = reader
+ .lines()
+ .map(|x| x.unwrap().parse::<i32>().unwrap())
+ .collect::<Vec<i32>>();
+ let mut increasing: u16 = 0;
+
+ for index in 1..values.len() {
+ if values[index - 1] < values[index] {
+ increasing += 1;
+ }
+ }
+
+ println!("{}", increasing);
+}
--
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