day 21 task 1

src/main.rs

@@ -1,5 +1,5 @@
 mod tasks;
 
 fn main() {
-    tasks::day16::run();
+    tasks::day21::run();
 }

src/tasks/day21.rs

@@ -0,0 +1,41 @@
+use super::day05::*;
+
+pub fn run() {
+    let input = std::fs::read_to_string("input/day21.txt").unwrap();
+    let ram: RAM = input
+        .split(",")
+        .enumerate()
+        .map(|(i, s)| (i, s.parse::<i128>().unwrap()))
+        .collect();
+    task1(ram.clone());
+}
+
+fn task1(ram: RAM) {
+    let p = r"NOT A J
+NOT B T
+OR T J
+NOT C T
+OR T J
+AND D J
+WALK
+"
+    .to_string();
+    play(ram.clone(), p);
+}
+
+fn play(ram: RAM, program: String) {
+    let mut computer = IntCodeComputer::new(program.chars().map(|c| c as i128).collect(), ram);
+    computer.run_until_end();
+    let output = computer.get_output();
+    let s: String = output
+        .iter()
+        .map(|i| {
+            if *i > 255 {
+                format!("{}", i)
+            } else {
+                format!("{}", (*i as u8) as char)
+            }
+        })
+        .collect();
+    println!("{}", s);
+}

src/tasks/mod.rs

@@ -12,3 +12,4 @@ pub mod day12;
 pub mod day13;
 pub mod day14;
 pub mod day16;
+pub mod day21;