From 16fdb976d946b4a2d2ae86fb69d9919daa819862 Mon Sep 17 00:00:00 2001
From: Tobias Eidelpes <tobias@eidelpes.info>
Date: Sun, 1 Dec 2019 17:58:57 +0100
Subject: [PATCH] Initial commit

---
 day1/haskell/day1.hs  |  11 +++++
 day1/input            | 100 ++++++++++++++++++++++++++++++++++++++++++
 day1/rust/Cargo.toml  |   9 ++++
 day1/rust/src/main.rs |  30 +++++++++++++
 4 files changed, 150 insertions(+)
 create mode 100644 day1/haskell/day1.hs
 create mode 100644 day1/input
 create mode 100644 day1/rust/Cargo.toml
 create mode 100644 day1/rust/src/main.rs

diff --git a/day1/haskell/day1.hs b/day1/haskell/day1.hs
new file mode 100644
index 0000000..ad11338
--- /dev/null
+++ b/day1/haskell/day1.hs
@@ -0,0 +1,11 @@
+import System.IO
+import Control.Monad
+
+getInts :: FilePath -> IO [Integer]
+getInts path = do
+    contents <- readFile path
+    let ints = (map read . lines $ contents) :: [Integer]
+    return ints
+
+main = do
+    putStrLn "The solution is: "
diff --git a/day1/input b/day1/input
new file mode 100644
index 0000000..761f488
--- /dev/null
+++ b/day1/input
@@ -0,0 +1,100 @@
+54755
+96495
+111504
+53923
+118158
+118082
+137413
+135315
+87248
+127646
+79201
+52399
+77966
+129568
+63880
+128973
+55491
+111226
+126447
+87017
+112469
+83975
+51280
+60239
+120524
+57122
+136517
+117378
+93629
+55125
+68990
+70336
+115119
+68264
+148122
+70075
+106770
+54976
+123852
+61813
+113373
+53924
+59660
+67111
+52825
+81568
+110842
+134870
+135529
+78689
+129451
+96041
+91627
+70863
+100098
+121908
+96623
+143752
+149936
+116283
+149488
+126158
+106499
+124927
+109574
+70711
+139078
+67212
+124251
+123803
+73569
+145668
+96045
+59748
+123238
+68005
+121412
+97236
+104800
+86786
+141680
+123807
+82310
+76593
+146092
+82637
+92339
+93821
+56247
+58328
+90159
+105700
+57317
+69011
+125544
+102372
+63797
+92127
+111207
+77596
diff --git a/day1/rust/Cargo.toml b/day1/rust/Cargo.toml
new file mode 100644
index 0000000..a147ffa
--- /dev/null
+++ b/day1/rust/Cargo.toml
@@ -0,0 +1,9 @@
+[package]
+name = "day1"
+version = "0.1.0"
+authors = ["Tobias Eidelpes <tobias@eidelpes.info>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
diff --git a/day1/rust/src/main.rs b/day1/rust/src/main.rs
new file mode 100644
index 0000000..ad5fdc8
--- /dev/null
+++ b/day1/rust/src/main.rs
@@ -0,0 +1,30 @@
+use std::fs::File;
+use std::env;
+use std::io::{Error, BufRead, BufReader};
+
+fn main() -> Result<(), Error> {
+    let args: Vec<String> = env::args().collect();
+
+    let filename = &args[1];
+
+    let reader = BufReader::new(File::open(filename).unwrap());
+
+    let mut result: i64 = 0;
+
+    for line in reader.lines() {
+        let n = line.unwrap().parse::<i64>().unwrap();
+        result += calculate_fuel(n);
+    }
+    println!("Result: {}", result);
+
+    Ok(())
+}
+
+fn calculate_fuel(mass: i64) -> i64 {
+    let fuel = mass / 3 - 2;
+    if fuel < 0 {
+        return 0;
+    } else {
+        return (fuel) + calculate_fuel(fuel);
+    }
+}