commit 4130a8208f1e1abd56f679769bd32a505cf4aa34
Author: Dory <dory@dory.moe>
Date:   Wed Mar 6 21:42:37 2024 -0800

    day1

diff --git a/day1/Cargo.lock b/day1/Cargo.lock
new file mode 100644
index 0000000..ae5bfe8
--- /dev/null
+++ b/day1/Cargo.lock
@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "day1"
+version = "0.1.0"
diff --git a/day1/Cargo.toml b/day1/Cargo.toml
new file mode 100644
index 0000000..a3c4e52
--- /dev/null
+++ b/day1/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "day1"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
diff --git a/day1/input.txt b/day1/input.txt
new file mode 100644
index 0000000..38b625c
--- /dev/null
+++ b/day1/input.txt
@@ -0,0 +1,2255 @@
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diff --git a/day1/src/main.rs b/day1/src/main.rs
new file mode 100644
index 0000000..5be1133
--- /dev/null
+++ b/day1/src/main.rs
@@ -0,0 +1,25 @@
+use std::env;
+use std::fs::File;
+use std::io::BufReader;
+use std::io::BufRead;
+
+fn main() {
+    let args: Vec<String> = env::args().collect();
+    let input = &args[1];
+    let reader = BufReader::new(File::open(input).expect("where file?"));
+
+    let mut sum: i64 = 0;
+    let mut max: i64 = 0;
+    for line in reader.lines() {
+        if !line.as_ref().unwrap().trim().is_empty() {
+            sum += line.unwrap().parse::<i64>().unwrap();
+        } else {
+            if sum > max {
+                max = sum;
+            }
+            sum = 0;
+        }
+    }
+
+    println!("Max: {}", max);
+}
diff --git a/day1/test.txt b/day1/test.txt
new file mode 100644
index 0000000..2094f91
--- /dev/null
+++ b/day1/test.txt
@@ -0,0 +1,14 @@
+1000
+2000
+3000
+
+4000
+
+5000
+6000
+
+7000
+8000
+9000
+
+10000