add copyright notice

2025-07-24 23:08:19 -04:00
parent 5309593e70
commit be77271930
100 changed files with 673 additions and 82 deletions
--- a/notebooks/problem0009.ipynb
+++ b/notebooks/problem0009.ipynb
@@ -84,7 +84,11 @@
   "id": "8809ed3b",
   "metadata": {},
   "source": [
-    "So our product is $abc=31875000$."
+    "So our product is $abc=31875000$.\n",
+    "\n",
+    "#### Copyright (C) 2025 filifa\n",
+    "\n",
+    "This work is licensed under the [Creative Commons Attribution-ShareAlike 4.0 International license](https://creativecommons.org/licenses/by-sa/4.0/) and the [BSD Zero Clause license](https://spdx.org/licenses/0BSD.html)."
   ]
  }
 ],