Finish day 1 for rust

.gitignore

@@ -1 +1,2 @@
 /notes/
+target/

2018/01/julia/repeat.jl

@@ -9,15 +9,12 @@ function main()
     while !done
         for value in values
             if total in prevs
-                # println(prevs)
                 println(total)
                 done = true
                 break
             end
             union!(prevs, [total])
             total += value
-            # println(total)
-            # println(prevs)
         end
         # println("-")
     end

2018/01/rust/repeat/Cargo.toml

@@ -0,0 +1,7 @@
+[package]
+name = "repeat"
+version = "0.1.0"
+authors = ["Tom <[email protected]>"]
+edition = "2018"
+
+[dependencies]

2018/01/rust/repeat/src/main.rs

@@ -0,0 +1,29 @@
+use std::collections::HashSet;
+use std::io::{self, BufRead, BufReader};
+use std::fs::File;
+
+fn main() -> io::Result<()> {
+    let values = read_values()?;
+    let mut prevs = HashSet::new();
+    let mut total = 0;
+    'outer: loop {
+        for value in &values {
+            if prevs.contains(&total) {
+                println!("{}", total);
+                break 'outer;
+            }
+            prevs.insert(total);
+            total += value;
+        }
+    }
+    Ok(())
+}
+
+fn read_values() -> io::Result<Vec<i32>> {
+    let file = File::open("../../input/input.txt")?;
+    let mut values = Vec::new();
+    for line in BufReader::new(file).lines() {
+        values.push(line.unwrap().parse::<i32>().unwrap());
+    }
+    Ok(values)
+}