day17

day17.py

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+from tools.aoc import AOCDay
+from typing import Any
+
+
+class Day(AOCDay):
+    inputs = [
+        [
+            (638, "input17_test"),
+            (1506, "input17"),
+        ],
+        [
+            (39479736, "input17")
+        ]
+    ]
+
+    def part1(self) -> Any:
+        step = self.getInput(int)
+        buffer = [0]
+        index = 0
+        for i in range(2017):
+            index = (index + step) % len(buffer) + 1
+            buffer.insert(index, i + 1)
+
+        return buffer[buffer.index(2017) + 1]
+
+    def part2(self) -> Any:
+        step = self.getInput(int)
+        index = 0
+        ans = 0
+        for i in range(50_000_000):
+            index = (index + step) % (i + 1) + 1
+            if index == 1:
+                ans = i + 1
+
+        return ans
+
+
+if __name__ == '__main__':
+    day = Day(2017, 17)
+    day.run(verbose=True)

inputs/input17

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+359

inputs/input17_test

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+3