Day 3 Done

2024/03/part 1 solution.py

@@ -0,0 +1,26 @@
+
+testing = 0
+if testing ==0:
+    with open(r'2024/03\input.txt', 'r') as file:
+        input = file.read()
+else:
+    input = 'xmul(2,4)%&mul[3,7]!@^do_not_mul(5,5)+mul(32,64]then(mul(11,8)mul(8,5))'
+
+
+# find every exact instance of mul() and multiply the two numbers together 
+
+import re
+
+# Regular expression to find all instances of mul() with its arguments
+pattern = r'mul\((\d+),(\d+)\)'
+
+matches = re.findall(pattern, input)
+
+numbers = [(int(x), int(y)) for x, y in matches]
+
+print(numbers)
+answer = 0
+for x, y in numbers:
+    answer += x*y
+
+print(answer)

2024/03/part 2 solution.py

@@ -0,0 +1,48 @@
+testing = 0
+
+if testing ==0:
+    with open(r'2024/03\input.txt', 'r') as file:
+        input = file.read()
+else:
+    input = "xmul(2,4)&mul[3,7]!^don't()_mul(5,5)+mul(32,64](mul(11,8)undo()?mul(8,5))"
+
+
+# find every exact instance of mul() and multiply the two numbers together 
+
+import re
+
+# Regular expression to find all instances of mul() with its arguments
+pattern = r'mul\((\d+),(\d+)\)'
+disable_pattern = r"don't\(\)"
+enable_pattern = r"do\(\)"
+
+enabled_list = []
+disabled_list = []
+
+is_active = True
+
+# Split the input string by mul() to handle the state switching
+parts = re.split(r'(mul\(\d+,\d+\))', input)
+#print(parts)
+
+for part in parts:
+    if re.search(disable_pattern, part):
+        is_active = False
+    elif re.search(enable_pattern, part):
+        is_active = True
+    elif re.match(pattern, part):
+        match = re.match(pattern, part)
+        numbers = (int(match.group(1)), int(match.group(2)))
+        if is_active:
+            enabled_list.append(numbers)
+        else:
+            disabled_list.append(numbers)
+
+print("Enabled list:", enabled_list)
+print("Disabled list:", disabled_list)
+
+answer = 0
+for x, y in enabled_list:
+    answer += x*y
+
+print(answer)