From f37add7136766b83a7e1240d091ad1220b50f089 Mon Sep 17 00:00:00 2001
From: "lucas.mathieu" <lmlucas.mathieu@gmail.com>
Date: Thu, 11 Dec 2025 15:29:38 +0100
Subject: [PATCH] add 2025 day 6 part 2

---
 2025/day-06/part-two.py | 117 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 117 insertions(+)
 create mode 100644 2025/day-06/part-two.py

diff --git a/2025/day-06/part-two.py b/2025/day-06/part-two.py
new file mode 100644
index 0000000..98a2a31
--- /dev/null
+++ b/2025/day-06/part-two.py
@@ -0,0 +1,117 @@
+import logging
+import sys
+
+# Logger setup
+logger = logging.getLogger(__name__)
+logger.setLevel(logging.DEBUG)
+stream_handler = logging.StreamHandler()
+logger.addHandler(stream_handler)
+
+class Operation:
+    def __init__(self, operation, count):
+        self._operation = operation
+        self._count = count
+        self.numbers = []
+
+    @property
+    def operation(self):
+        """The operation property."""
+        return self._operation
+
+    @property
+    def count(self):
+        """The count property."""
+        return self._count
+
+class Problem:
+    def __init__(self, operation, numbers):
+        self._operation = operation
+        self._numbers = numbers
+
+    @property
+    def operation(self):
+        """The operation property."""
+        return self._operation
+
+    @operation.setter
+    def operation(self, value):
+        self._operation = value
+
+    @property
+    def numbers(self):
+        """The numbers property."""
+        return self._numbers
+
+    @numbers.setter
+    def numbers(self, value):
+        self._numbers = value
+
+    def result(self):
+        result = 0
+        match self._operation:
+            case "*":
+                result = self._numbers[0]
+                for i in range(1, len(self._numbers)):
+                    result = result * self._numbers[i]
+            case "+":
+                result = self._numbers[0]
+                for i in range(1, len(self._numbers)):
+                    result = result + self._numbers[i]
+            case _:
+                logger.error("Undefined operator")
+        return result
+
+def main():
+    output = 0
+    operations = []
+    number_lines = []
+    problems = []
+    with open("input.txt", "r") as input:
+        lines = input.readlines()
+        i = 0
+        while i < len(lines[-1]):
+            count = 0
+            op = lines[-1][i]
+            i += 1
+            while i < len(lines[-1]) and lines[-1][i] == " ":
+                count += 1
+                i += 1
+            if i == len(lines[-1]) - 1:
+                count += 1
+            if count == 0:
+                continue
+            operations.append(Operation(op, count))
+
+        for line in lines[:len(lines) - 1]:
+            i = 0
+            op_count = 0
+            while i < len(line):
+                logger.debug("op_count = " + str(op_count))
+                logger.debug("'" + line[i:i+operations[op_count].count] + "'")
+                operations[op_count].numbers.append(line[i:i+operations[op_count].count])
+                i += operations[op_count].count + 1
+                op_count += 1
+
+        for i in range(len(operations)):
+            operation = operations[i]
+            numbers = operation.numbers
+            logger.debug("Operation = " + operation.operation)
+            logger.debug(numbers)
+            ns = []
+            for j in range(len(numbers[0])):
+                logger.debug("j=" + str(j))
+                logger.debug("numbers[j]=" + numbers[j])
+                n = ""
+                for k in range(len(numbers)):
+                    logger.debug("k=" + str(k))
+                    n += numbers[k][j]
+                ns.append(int(n))
+            problems.append(Problem(operation.operation, ns))
+
+        for problem in problems:
+            output += problem.result()
+
+    logger.info("Output: " + str(output))
+
+if __name__ == "__main__":
+    main()