2025/d1

2025/.gitignore

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+# Created by venv; see https://docs.python.org/3/library/venv.html
+#

2025/d1.py

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+#combo_lock = [x for x in range(0, 100)] 
+last_position = 50
+current_position = last_position
+password = 0
+
+#print(combo_lock)
+#print('At position ', combo_lock[current_position])
+
+input_file = open('d1_input.txt', 'r')
+lines = input_file.readlines()
+
+def find_direction(rotation):
+    print(rotation[0])
+    return rotation[0]
+
+def find_clicks(rotation):
+    print(rotation[1:])
+    return int(rotation[1:])
+
+def track_landed_zero(position, password, clicks):
+    if position == 0:
+        password += 1
+    print('track_zero() password', password)
+    return password
+
+def track_passed_zeroes(direction, clicks, position, password, current_position):
+    print('track_passed_zeroes() starting with', password, 'zeroes')
+    if direction == 'L':
+        if position < (clicks % 100) and not position == 0:
+            password += 1
+            print('added 1 more going L for total of', password)
+    elif direction == 'R':
+        if (100 - position) < (clicks % 100) and not position == 0:
+            password += 1
+            print('added 1 more going R for total of', password)
+    if clicks >= 100:
+        password += (clicks // 100)
+
+    print('adding more for total of', password)
+    return password
+
+def turn_dial(direction, clicks, position, password):
+    if direction == 'L':
+        position = (position - clicks) % 100
+    elif direction == 'R':
+        position = (position + clicks) % 100
+    else:
+        print(direction, 'is not a valid direction')
+    print('turn_dial() position', position)
+    return position
+
+# Main loop
+count = 0
+print('Current position', current_position)
+print('Last position', last_position)
+print('Current password', password)
+for line in lines:
+    count += 1
+    line = line.strip()
+    clicks = find_clicks(line)
+    direction = find_direction(line)
+
+    print('last_position', last_position)
+    print(clicks, 'clicks to the', direction)
+    current_position = turn_dial(direction, clicks, last_position, password)
+    print('current_position', current_position)
+    password = track_passed_zeroes(direction, clicks, last_position, password, current_position)
+    password = track_landed_zero(current_position, password, clicks)
+    last_position = current_position
+    print('Current password', password)
+
+input_file.close()
+print('Total lines', count)