From f754fb2b193bfd17a7af51fae32f0805a1f16d0b Mon Sep 17 00:00:00 2001
From: Santo Cariotti <santo@dcariotti.me>
Date: Mon, 6 Dec 2021 21:04:28 +0100
Subject: Add day1

---
 day1/src/main.rs | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 day1/src/main.rs

(limited to 'day1/src')

diff --git a/day1/src/main.rs b/day1/src/main.rs
new file mode 100644
index 0000000..ed6c56c
--- /dev/null
+++ b/day1/src/main.rs
@@ -0,0 +1,25 @@
+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 values.iter().enumerate() {
+        if index == 0 {
+            continue;
+        }
+
+        if values[index - 1] < values[index] {
+            increasing += 1;
+        }
+    }
+
+    println!("{}", increasing);
+}
-- 
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