2025 day 1, ugly, lazy.

src/holt59/aoc/2025/day1.py

@@ -0,0 +1,42 @@
+from collections import Counter
+from typing import Any, Iterator, Literal, cast
+
+from ..base import BaseSolver
+
+
+class Solver(BaseSolver):
+    def solve(self, input: str) -> Iterator[Any]:
+        data = [
+            (cast(Literal["R", "L"], row[0]), int(row[1:]))
+            for row in input.splitlines()
+        ]
+
+        count, dial = 0, 50
+        for sense, value in data:
+            dial = (dial + (-1 if sense == "L" else 1) * value) % 100
+            if dial == 0:
+                count += 1
+
+        yield count
+
+        count, dial = 0, 50
+        for sense, value in data:
+            if dial == 0 and sense == "L":
+                dial = dial - value + 100
+            else:
+                dial = dial + (-1 if sense == "L" else 1) * value
+
+            while dial < 0:
+                count, dial = count + 1, dial + 100
+
+            if dial == 0:
+                count += 1
+
+            while dial >= 100:
+                count, dial = count + 1, dial - 100
+
+            self.logger.info(
+                f"after {sense}{value:<3d} dial is at {dial:>2d}, count is {count}"
+            )
+
+        yield count

src/holt59/aoc/2025/day2.py

@@ -0,0 +1,9 @@
+from typing import Any, Iterator
+
+from ..base import BaseSolver
+
+
+class Solver(BaseSolver):
+    def solve(self, input: str) -> Iterator[Any]:
+        yield 0
+        yield 0

src/holt59/aoc/__main__.py

@@ -1,7 +1,6 @@
 import argparse
 import importlib
 import logging
-import logging.handlers
 import sys
 from datetime import datetime
 from pathlib import Path
@@ -59,7 +58,7 @@ def main():
         default=None,
         help="input to use (override user and test)",
     )
-    parser.add_argument("-y", "--year", type=int, help="year to run", default=2024)
+    parser.add_argument("-y", "--year", type=int, help="year to run", default=2025)
     parser.add_argument("day", type=int, help="day to run")
 
     args = parser.parse_args()

src/holt59/aoc/inputs/holt59/2025/day2.txt

@@ -0,0 +1 @@
+92916254-92945956,5454498003-5454580069,28-45,4615-7998,4747396917-4747534264,272993-389376,36290651-36423050,177-310,3246326-3418616,48-93,894714-949755,952007-1003147,3-16,632-1029,420-581,585519115-585673174,1041-1698,27443-39304,71589003-71823870,97-142,2790995-2837912,579556301-579617006,653443-674678,1515120817-1515176202,13504-20701,1896-3566,8359-13220,51924-98061,505196-638209,67070129-67263432,694648-751703,8892865662-8892912125

src/holt59/aoc/inputs/tests/2025/day1.txt

@@ -0,0 +1,10 @@
+L68
+L30
+R48
+L5
+R60
+L55
+L1
+L99
+R14
+L82

src/holt59/aoc/inputs/tests/2025/day2.txt

@@ -0,0 +1,3 @@
+11-22,95-115,998-1012,1188511880-1188511890,222220-222224,
+1698522-1698528,446443-446449,38593856-38593862,565653-565659,
+824824821-824824827,2121212118-2121212124