'Solution'

app/create_file.py

@@ -1 +1,52 @@
-# write your code here
+import sys
+import os
+
+from datetime import datetime
+
+
+args = sys.argv[1:]
+dirs = []
+filename = None
+
+mode = None
+for arg in args:
+    if arg == "-d":
+        mode = "d"
+    elif arg == "-f":
+        mode = "f"
+    else:
+        if mode == "d":
+            dirs.append(arg)
+        elif mode == "f":
+            filename = arg
+            mode = None
+
+dir_path = ""
+if dirs:
+    dir_path = os.path.join(*dirs)
+    os.makedirs(dir_path, exist_ok=True)
+
+if filename:
+    lines = []
+    while True:
+        line = input("Enter content line: ")
+        if line == "stop":
+            break
+        lines.append(line)
+
+    file_path = os.path.join(dir_path, filename) if dir_path else filename
+
+    needs_blank_line = (
+        os.path.exists(file_path) and os.path.getsize(file_path) > 0
+    )
+
+    with open(file_path, "a") as f:
+
+        if needs_blank_line:
+            f.write("\n")
+
+        timestamp = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
+        f.write(f"{timestamp}\n")
+
+        for i, line_content in enumerate(lines, 1):
+            f.write(f"{i} {line_content}\n")