init

2023/day8/p1/main.py

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+
+
+INPUT_FILE = "input.text"
+INSTRUCTIONS = []
+PATH = {}
+
+def read_file() -> None:
+    with open(INPUT_FILE, 'r') as file:
+        lines = file.readlines()
+
+    line_index = 0
+    for line in lines:
+
+        # This in our instruction line
+        if line_index == 0:
+            for char in line:
+                if char == 'L':
+                    INSTRUCTIONS.append(0)
+                elif char == 'R':
+                    INSTRUCTIONS.append(1)
+
+        elif line_index != 1:
+            source: str = line.split('=')[0].strip()
+
+            dest = line.split('=')[1].strip()[1:-1].split(', ')
+
+            PATH[source] = dest
+
+        line_index += 1
+
+def main() -> None:
+    read_file()
+
+    # print(PATH)
+
+    pos = 'AAA'
+    steps = 1
+    while True:
+        done = False
+
+        for instruction in INSTRUCTIONS:
+            pos = PATH[pos][instruction]
+
+            if pos == 'ZZZ':
+                done = True
+                break
+
+            steps += 1
+        if done:
+            break
+
+    print(f'Steps taken: {steps}')
+
+
+
+
+if __name__ == "__main__":
+    main()