day 6

day-06/part-1.py

@@ -0,0 +1,22 @@
+import aocd
+
+import operator
+import functools
+
+def parse(data):
+    op_table = {'+': operator.add, '*': operator.mul}
+
+    *nums, ops = (row.split() for row in data.strip().split('\n'))
+
+    nums = zip(*(map(int, row) for row in nums)) # zip(*l) <- ancient trick for transposing l; learned it from golfing :3
+
+    ops = (op_table[op] for op in ops)
+    return zip(ops, nums)
+
+def main(data):
+    return sum(functools.reduce(f, nums) for f, nums in parse(data))
+
+if __name__ == '__main__':
+    solution = main(aocd.get_data(day=6, year=2025))
+    print(solution)
+    aocd.submit(solution, part='a', day=6, year=2025)

day-06/part-2.py

@@ -0,0 +1,28 @@
+import aocd
+
+import operator
+import functools
+
+def parse(data):
+    op_table = {'+': operator.add, '*': operator.mul}
+
+    cols = zip(*data.strip('\n').split('\n'))
+
+    problems = [[]]
+    for col in cols:
+        if any(c != ' ' for c in col):
+            # Not an empty line
+            problems[-1].append(col)
+        else:
+            # Empty line
+            problems.append([])
+    
+    return ((op_table[p[0][-1]], [int(''.join(col[:-1])) for col in p]) for p in problems)
+
+def main(data):
+    return sum(functools.reduce(f, nums) for f, nums in parse(data))
+
+if __name__ == '__main__':
+    solution = main(aocd.get_data(day=6, year=2025))
+    print(solution)
+    aocd.submit(solution, part='b', day=6, year=2025)