feat: 2025 day06

README.md

@@ -9,7 +9,7 @@
 | 03 | [✓][032015] |             |             |             | [✓][032019] | [✓][032020] | [✓][032021] | [✓][032022] | [✓][032023] | [✓][032024] | [✓][032025] |
 | 04 | [✓][042015] |             |             |             | [✓][042019] | [✓][042020] | [✓][042021] | [✓][042022] | [✓][042023] | [✓][042024] | [✓][042025] |
 | 05 | [✓][052015] |             |             |             |             | [✓][052020] |             | [✓][052022] | [✓][052023] | [✓][052024] | [✓][052025] |
-| 06 | [✓][062015] |             |             |             |             | [✓][062020] |             | [✓][062022] | [✓][062023] | [✓][062024] |             |
+| 06 | [✓][062015] |             |             |             |             | [✓][062020] |             | [✓][062022] | [✓][062023] | [✓][062024] | [✓][062025] |
 | 07 | [✓][072015] |             |             |             |             | [✓][072020] |             | [✓][072022] | [✓][072023] | [✓][072024] |             |
 | 08 | [✓][082015] |             |             |             |             | [✓][082020] |             | [✓][082022] | [✓][082023] | [✓][082024] |             |
 | 09 | [✓][092015] |             |             |             |             | [✓][092020] |             | [✓][092022] | [✓][092023] | [✓][092024] |             |
@@ -134,6 +134,7 @@
 [032025]: https://github.com/fabiogallotti/adventofcode/tree/master/src/year2025/day03
 [042025]: https://github.com/fabiogallotti/adventofcode/tree/master/src/year2025/day04
 [052025]: https://github.com/fabiogallotti/adventofcode/tree/master/src/year2025/day05
+[062025]: https://github.com/fabiogallotti/adventofcode/tree/master/src/year2025/day06
 
 ## To run an exercise ##
 

src/year2025/day06/exercises.py

@@ -0,0 +1,10 @@
+from functions.read_input import read_input
+from inputs.path import PATH
+
+from .functions import part_1, part_2
+
+data = read_input(f"{PATH}/2025/day06.txt")
+
+print(f"First part: {part_1(data)}")
+
+print(f"Second part: {part_2(data)}")

src/year2025/day06/functions.py

@@ -0,0 +1,77 @@
+def preprocessing(data):
+    list_numbers = []
+    operations = [elem for elem in data[-1].split(" ") if elem]
+
+    for elem in data[:-1]:
+        numbers = elem.split(" ")
+        list_numbers.append([int(num) for num in numbers if num])
+
+    vertical_list = list(zip(*list_numbers))
+
+    return vertical_list, operations
+
+
+def part_1(data):
+    list_numbers, operations = preprocessing(data)
+    list_total = []
+    for i in range(len(list_numbers)):
+        if operations[i] == "+":
+            list_total.append(sum(list_numbers[i]))
+        elif operations[i] == "*":
+            product = 1
+            for num in list_numbers[i]:
+                product *= num
+            list_total.append(product)
+
+    return sum(list_total)
+
+
+def preprocessing_part2(data):
+    list_numbers = []
+    operations_with_whitespaces = [elem for elem in data[-1].split(" ")]
+    operations = [elem for elem in data[-1].split(" ") if elem]
+    i = [i for i, x in enumerate(operations_with_whitespaces) if x]
+    lengths = [j - k for k, j in zip(i, [*i[1:], len(operations_with_whitespaces)])]
+
+    for elem in data[:-1]:
+        numbers = elem.split(" ")
+
+        for i in range(len(numbers)):
+            if numbers[i] == "":
+                numbers[i] = "0"
+
+        numbers = [n for num in numbers for n in num]
+
+        for i in range(len(numbers)):
+            if numbers[i] == "0":
+                numbers[i] = ""
+
+        list_numbers.append(numbers)
+
+        vertical_list = list(zip(*list_numbers))
+        vertical_list_of_list = [
+            vertical_list[sum(lengths[:i]) : sum(lengths[: i + 1])] for i in range(len(lengths))
+        ]
+
+    list_numbers = [
+        [int("".join(x for x in elem if x != "")) for elem in list_ if any(x != "" for x in elem)]
+        for list_ in vertical_list_of_list
+    ]
+
+    return list_numbers, operations
+
+
+def part_2(data):
+    list_numbers, operations = preprocessing_part2(data)
+
+    list_total = []
+    for i in range(len(list_numbers)):
+        if operations[i] == "+":
+            list_total.append(sum(list_numbers[i]))
+        elif operations[i] == "*":
+            product = 1
+            for num in list_numbers[i]:
+                product *= num
+            list_total.append(product)
+
+    return sum(list_total)

tests/2025/test_2025day06.py

@@ -0,0 +1,16 @@
+from year2025.day06.functions import part_1, part_2
+
+EXAMPLE_1 = [
+    "123 328  51 64 ",
+    " 45 64  387 23 ",
+    "  6 98  215 314",
+    "*   +   *   +  ",
+]
+
+
+def test_part_1():
+    assert part_1(EXAMPLE_1) == 4277556
+
+
+def test_part_2():
+    assert part_2(EXAMPLE_1) == 3263827