Implement day 25.

2016/src/day25.rs

@@ -0,0 +1,43 @@
+use std::io;
+use common;
+
+#[derive(Default)]
+pub struct Day25 {
+}
+
+impl Day25 {
+
+    pub fn new() -> Day25 {
+        Default::default()
+    }
+
+}
+
+impl common::Solution for Day25 {
+
+    fn part1(&mut self, _input: &mut io::Read) -> String {
+        let initial = 0b101010101010 - 362 * 7;
+        println!("Initial value: {}", initial);
+        sender_program(initial);
+        unreachable!();
+    }
+}
+
+/// This function is an approximation of what the original code is doing.
+pub fn sender_program(mut a: i32) {
+    // Placeholder variables
+    let mut b = 0;
+    let mut d = 0;
+
+    d = a;
+    d += 362 * 7;
+    loop {
+        if a == 0 {
+            a = d;
+        }
+        b = a;
+        a = b / 2;
+        b = b % 2;
+        println!("{}", b);
+    }
+}