Merge branch '2017-main'

1 files changed, 24 insertions, 0 deletions

diff --git a/2017/src/bin/day_1.rs b/2017/src/bin/day_1.rs
new file mode 100644
index 0000000..5d0e431
--- /dev/null
+++ b/2017/src/bin/day_1.rs
@@ -0,0 +1,24 @@
+extern crate advent_of_code_2017;
+use advent_of_code_2017::*;
+
+fn main() {
+    let args = AdventArgs::init();
+
+    let number_chars = args.input[0].chars().collect::<Vec<_>>();
+
+    let mut sum = 0;
+    
+    for i in 0..number_chars.len() {
+        let next = if args.part == 1 {
+            (i + 1)
+        } else {
+            (i + number_chars.len() / 2)
+        } % number_chars.len();
+        if (number_chars[i] == number_chars[next]) {
+            let parsed: i32 = number_chars[i].to_string().parse().unwrap();
+            sum += parsed;
+        }
+    }
+    
+    println!("Sum is {}", sum);
+}