Adding day 3

day3/part1.py

@@ -0,0 +1,10 @@
+import re
+
+result = 0
+with open("part1_input.txt", "r") as file_input:
+    results = re.findall(r"mul\(\d+,\d+\)", file_input.read())
+    for item in results:
+        first_number, second_number = re.findall(r"\d+", item)
+        result += int(first_number) * int(second_number)
+
+print(result)

day3/part2.py

@@ -0,0 +1,28 @@
+import re
+
+result = 0
+with open("part2_input.txt", "r") as file_input:
+    raw_key_values = re.findall(r"(mul\(\d+,\d*\))|(do\(\))|(don't\(\))", file_input.read())
+    key_values = []
+    for match_tuple in raw_key_values:
+        temp_list = list(match_tuple)
+        temp_filtered_list = list(filter(None, temp_list))
+        key_values.append(temp_filtered_list[0])
+    skip = False
+    math_list = []
+    for item in key_values:
+        if item == "don't()":
+            skip = True
+            continue
+        elif item == "do()":
+            skip = False
+            continue
+        elif skip:
+            continue
+        math_list.append(item)
+
+    for item in math_list:
+        first_number, second_number = re.findall(r"\d+", item)
+        result += int(first_number) * int(second_number)
+
+print(result)

day3/test_part1_input.txt

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+xmul(2,4)%&mul[3,7]!@^do_not_mul(5,5)+mul(32,64]then(mul(11,8)mul(8,5))

day3/test_part2_input.txt

@@ -0,0 +1 @@
+xmul(2,4)&mul[3,7]!^don't()_mul(5,5)+mul(32,64](mul(11,8)undo()?mul(8,5))