Day 2

1 files changed, 26 insertions, 0 deletions

diff --git a/src/bin/day_2.rs b/src/bin/day_2.rs
new file mode 100644
index 0000000..307029a
--- /dev/null
+++ b/src/bin/day_2.rs
@@ -0,0 +1,26 @@
+extern crate advent_of_code_2017;
+use advent_of_code_2017::*;
+
+fn main() {
+    let args = AdventArgs::init();
+    let sum = args.input.iter().map(|line| {
+        let splitline = parse_space_separated_ints(line).unwrap();
+        
+        if args.part == 1 {
+            let max = splitline.iter().max().unwrap();
+            let min = splitline.iter().min().unwrap();
+            max-min
+        } else {
+            for i in 0..splitline.len() {
+                for j in 0..splitline.len() {
+                    if i != j && splitline[i] % splitline[j] == 0  {
+                        return splitline[i] / splitline[j];
+                    }
+                }
+            }
+            panic!("Didn't find a dividing one! {:?}", splitline)
+        }
+    }).sum::<i32>();
+
+    println!("Checksum is {}", sum);
+}