Initial commit: AoC solutions 2023-2025

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

2023/15.py

@@ -0,0 +1,67 @@
+class Box:
+    def __init__(self):
+        self.lenses = []   
+
+    def add_lens(self, lens_to_add):
+        for i, lens in enumerate(self.lenses):
+            if lens[0] == lens_to_add[0]:
+                self.lenses[i] = lens_to_add
+                return
+        self.lenses.append(lens_to_add)
+    
+    def remove_lens(self, lens_to_remove):
+        for i, lens in enumerate(self.lenses):
+            if lens[0] == lens_to_remove[0]:
+                self.lenses.pop(i)
+                return
+
+    def power(self, idx: int):
+        total = 0
+        if len(self.lenses) == 0:
+            return 0
+        for i, lens in enumerate(self.lenses):
+            if lens[1] is None:
+                continue
+            total += lens[1] * (i + 1) * (idx + 1)
+        
+        return total        
+    def __str__(self):
+        return str(self.lenses)
+
+def get_hash(word: str):
+    array_total = 0
+    ascii_num = [ord(char) for char in word]
+    for num in ascii_num:
+        array_total += num
+        array_total *= 17
+        array_total = array_total % 256
+    return array_total
+
+
+# Read the file
+file_path = '15-input.txt'
+with open(file_path, 'r') as file:
+    line = file.readline()
+
+# Split each line into individual characters
+words = line.split(',')
+
+boxes = [Box() for _ in range(256)]
+
+print(words)
+total = 0
+
+for word in words:
+    if word.count('-') == 1:
+        start, end = word.split('-')
+        box_idx = get_hash(start)
+        boxes[box_idx].remove_lens((start, None))
+    else:
+        start, end = word.split('=')
+        box_idx = get_hash(start)
+        boxes[box_idx].add_lens((start, int(end)))
+
+for i, box in enumerate(boxes):
+    total += box.power(i)
+
+print(total)