d14

answer_cache.json

@@ -130,5 +130,15 @@
             ],
             "correct": "111,68"
         }
+    },
+    "14": {
+        "1": {
+            "wrong": [],
+            "correct": "3718110721"
+        },
+        "2": {
+            "wrong": [],
+            "correct": 20298300
+        }
     }
 }

day14.py

@@ -0,0 +1,104 @@
+from __future__ import annotations
+from tools.aoc import AOCDay
+from typing import Any
+
+
+class Recipe:
+    score: int
+    next: Recipe
+
+    def __init__(self, score: int):
+        self.score = score
+
+
+class RecipeList:
+    def __init__(self):
+        self.head = Recipe(3)
+        self.tail = Recipe(7)
+        self.head.next = self.tail
+        self.tail.next = self.head
+
+    def add(self, score: int):
+        r = Recipe(score)
+        r.next = self.head
+        self.tail.next = r
+        self.tail = r
+
+    def print(self):
+        m = self.head
+        while m.next != self.head:
+            print("%d " % m.score, end="")
+            m = m.next
+
+        print(m.score)
+
+
+class Day(AOCDay):
+    inputs = [
+        [
+            ("5158916779", "input14_test1"),
+            ("3718110721", "input14"),
+        ],
+        [
+            (18, "input14_test2"),
+            (2018, "input14_test3"),
+            (20298300, "input14"),
+        ],
+    ]
+
+    def part1(self) -> Any:
+        recipes = RecipeList()
+        elf_1 = recipes.head
+        elf_2 = recipes.tail
+
+        for _ in range(self.getInput(int) + 10):
+            new_score = str(elf_1.score + elf_2.score)
+            for c in map(int, new_score):
+                recipes.add(c)
+
+            for i in range(elf_1.score + 1):
+                elf_1 = elf_1.next
+
+            for i in range(elf_2.score + 1):
+                elf_2 = elf_2.next
+
+        mark = recipes.head
+        for _ in range(self.getInput(int)):
+            mark = mark.next
+
+        res = ""
+        for _ in range(10):
+            res += str(mark.score)
+            mark = mark.next
+
+        return res
+
+    def part2(self) -> Any:
+        recipes = RecipeList()
+        elf_1 = recipes.head
+        elf_2 = recipes.tail
+
+        count = 2
+        target = self.getInput()
+        current = "0" * (len(target) - 2) + "37"
+        while current != target:
+            new_score = str(elf_1.score + elf_2.score)
+            for c in map(int, new_score):
+                recipes.add(c)
+                count += 1
+                current = current[1:] + str(c)
+                if current == target:
+                    return count - len(target)
+
+            for i in range(elf_1.score + 1):
+                elf_1 = elf_1.next
+
+            for i in range(elf_2.score + 1):
+                elf_2 = elf_2.next
+
+        return count - len(target)
+
+
+if __name__ == "__main__":
+    day = Day(2018, 14)
+    day.run(verbose=True)

inputs/input14

@@ -0,0 +1 @@
+306281

inputs/input14_test1

@@ -0,0 +1 @@
+9

inputs/input14_test2

@@ -0,0 +1 @@
+92510

inputs/input14_test3

@@ -0,0 +1 @@
+59414