feat: add solution 2025/06

aoc/input_file.py

@@ -54,7 +54,7 @@ def get(
     path.parent.mkdir(parents=True, exist_ok=True)
 
     with open(path) as f:
-        return f.read().strip()
+        return f.read().rstrip("\n")
 
 
 def get_or_download(

data/example/2025/06.txt

@@ -0,0 +1,4 @@
+123 328  51 64 
+ 45 64  387 23 
+  6 98  215 314
+*   +   *   +  

src/solution/year_2025/day_06.py

@@ -0,0 +1,52 @@
+import functools
+import math
+from typing import Any
+
+
+def part_1(input_data: str) -> Any:
+    lines = input_data.splitlines()
+    numbers = [list(map(int, line.split())) for line in lines[:-1]]
+    signs = lines[-1].split()
+
+    c = 0
+    for i, x in enumerate(signs):
+        acc = [n[i] for n in numbers]
+        c += sum(acc) if x == "+" else math.prod(acc)
+
+    return c
+
+
+def part_2(input_data: str) -> Any:
+    lines = input_data.splitlines()
+    numbers = [[int(s) if s != " " else None for s in line] for line in lines[:-1]]
+    signs = [s if s != " " else None for s in lines[-1]]
+
+    idx = len(signs) - 1
+    c = 0
+
+    while idx >= 0:
+        acc = []
+
+        while True:
+            _digits = [n[idx] for n in numbers]
+            digits = [n for n in _digits if n is not None]
+            acc.append(functools.reduce(lambda acc, x: acc * 10 + x, digits))
+
+            sign = signs[idx]
+
+            if sign is not None:
+                c += sum(acc) if sign == "+" else math.prod(acc)
+                idx -= 2
+                break
+
+            idx -= 1
+
+    return c
+
+
+def test_part_1(example_data):
+    assert part_1(example_data) == 4277556
+
+
+def test_part_2(example_data):
+    assert part_2(example_data) == 3263827