Remove cargo stuff for rust and add python implementation

day1/rust/Cargo.toml

@@ -1,9 +0,0 @@
-[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]

day1/rust/main.rs

@@ -0,0 +1,31 @@
+use std::fs::File;
+use std::io::{BufRead, BufReader};
+
+fn main() {
+    let reader = BufReader::new(File::open("../input").unwrap());
+
+    let mut result_part_one: i64 = 0;
+    let mut result_part_two: i64 = 0;
+
+    for line in reader.lines() {
+        let n = line.unwrap().parse::<i64>().unwrap();
+        result_part_one += calculate_fuel1(n);
+        result_part_two += calculate_fuel2(n);
+    }
+    println!("Solution for Part One: {}", result_part_one);
+    println!("Solution for Part Two: {}", result_part_two);
+}
+
+fn calculate_fuel1(mass: i64) -> i64 {
+    let fuel = mass / 3 - 2;
+    return fuel
+}
+
+fn calculate_fuel2(mass: i64) -> i64 {
+    let fuel = mass / 3 - 2;
+    if fuel < 0 {
+        return 0;
+    } else {
+        return (fuel) + calculate_fuel2(fuel);
+    }
+}

day1/rust/src/main.rs

@@ -1,30 +0,0 @@
-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);
-    }
-}