From cb5a1dde18d3210f99d79b6d24b54cd328de903d Mon Sep 17 00:00:00 2001
From: Anson Biggs <anson@ansonbiggs.com>
Date: Thu, 2 Dec 2021 00:03:31 -0700
Subject: [PATCH] add part 1 back to day 1

---
 day1/rust/src/main.rs | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/day1/rust/src/main.rs b/day1/rust/src/main.rs
index f13c7a1..e175beb 100644
--- a/day1/rust/src/main.rs
+++ b/day1/rust/src/main.rs
@@ -3,8 +3,27 @@ use std::fs;
 fn main() {
     let input = fs::read_to_string("../input.txt").expect("Could not read file");
 
-    let lines: Vec<i32> = input.lines().map(|s| s.parse::<i32>().unwrap()).collect();
+    let lines: Vec<i32> = input.lines().map(|s| s.parse().unwrap()).collect();
 
+    part1(&lines);
+    part2(&lines);
+}
+
+fn part1(lines: &Vec<i32>) {
+    let mut previous: i32 = 10000;
+    let mut increases: i32 = 0;
+
+    for current in lines.iter().map(|a| *a) {
+        if previous < current {
+            increases += 1;
+        }
+        previous = current;
+    }
+
+    println!("Increases: {}", increases);
+}
+
+fn part2(lines: &Vec<i32>) {
     let mut previous: i32 = 10000;
     let mut increases = 0;
 
@@ -15,7 +34,6 @@ fn main() {
             increases += 1;
         }
         previous = current;
-        // println!("{}", current);
     }
 
     println!("Increases: {}", increases);