Implement day 24 part 1.

2018/inputs/24.txt

@@ -0,0 +1,23 @@
+Immune System:
+1614 units each with 8016 hit points (immune to slashing; weak to radiation) with an attack that does 48 fire damage at initiative 9
+3730 units each with 5611 hit points (immune to bludgeoning; weak to fire) with an attack that does 14 radiation damage at initiative 16
+1627 units each with 9770 hit points (weak to cold) with an attack that does 55 fire damage at initiative 3
+4665 units each with 9782 hit points (weak to fire) with an attack that does 18 radiation damage at initiative 10
+281 units each with 5764 hit points (immune to fire; weak to radiation) with an attack that does 187 slashing damage at initiative 19
+524 units each with 9344 hit points with an attack that does 158 cold damage at initiative 15
+5013 units each with 9768 hit points with an attack that does 15 cold damage at initiative 14
+1143 units each with 1822 hit points (weak to radiation) with an attack that does 15 fire damage at initiative 18
+136 units each with 6830 hit points (weak to radiation) with an attack that does 420 slashing damage at initiative 7
+665 units each with 7973 hit points (weak to bludgeoning; immune to slashing) with an attack that does 119 fire damage at initiative 11
+
+Infection:
+515 units each with 8712 hit points (immune to radiation; weak to slashing, fire) with an attack that does 30 cold damage at initiative 1
+5542 units each with 56769 hit points with an attack that does 16 bludgeoning damage at initiative 4
+1663 units each with 10437 hit points (immune to slashing, fire, radiation) with an attack that does 12 radiation damage at initiative 12
+574 units each with 50124 hit points (weak to slashing, radiation) with an attack that does 171 fire damage at initiative 8
+1190 units each with 10652 hit points with an attack that does 16 cold damage at initiative 17
+3446 units each with 23450 hit points with an attack that does 12 fire damage at initiative 5
+5887 units each with 14556 hit points (weak to slashing) with an attack that does 4 radiation damage at initiative 2
+1761 units each with 41839 hit points (weak to cold) with an attack that does 35 cold damage at initiative 20
+4194 units each with 16090 hit points (immune to fire; weak to slashing) with an attack that does 6 fire damage at initiative 6
+2127 units each with 27065 hit points (weak to cold, slashing) with an attack that does 24 slashing damage at initiative 13

2018/src/day24.rs

@@ -128,7 +128,7 @@ impl Day24 {
             }
             let damage = self.units.iter().map(|x| unit.damage_to(x)).collect_vec();
             let target = (0..self.units.len())
-                .filter(|&x| !is_targeted[x] && self.units[x].faction != unit.faction)
+                .filter(|&x| !is_targeted[x] && self.units[x].faction != unit.faction && self.units[x].is_alive())
                 .max_by(|&x, &y| {
                     damage[x].cmp(&damage[y])
                         .then(self.units[x].effective_power().cmp(&self.units[y].effective_power()))
@@ -136,14 +136,12 @@ impl Day24 {
                 });
 
             if let Some(target) = target {
-                println!("{} will attack {}, dealing {}", i, target, damage[target]);
                 targets[i] = Some(target);
                 is_targeted[target] = true;
             }
         }
 
         order.sort_unstable_by_key(|&x| Reverse(self.units[x].initiative));
-        println!("{:?}", order);
 
         for attacker in order {
             if !self.units[attacker].is_alive() {
@@ -155,7 +153,6 @@ impl Day24 {
                 let defender = &mut self.units[id];
 
                 let losses = damage / defender.hp;
-                println!("{} does {} damage to {}. Killed {}", attacker, damage, id, losses);
                 defender.count = defender.count.saturating_sub(losses);
             }
         }