René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"New puzzle: next permutation in lexicographical order","articleBody":"```python\r\ndef sat(nx: List[int], x=[1, 2, 4, 3]): \r\n    \"\"\"Find the next permutation of a given list by lexicographical ordering.\"\"\"\r\n    import itertools\r\n    assert len(x) == len(nx) and set(x) == set(nx)\r\n    return x \u003c nx and all([list(perm) \u003c= x or list(perm) \u003e= nx for perm in list(itertools.permutations(x))])\r\n```\r\n\r\n\u003cdetails\u003e\u003csummary\u003eReveal solution\u003c/summary\u003e\r\n\r\n```python\r\ndef sol():\r\n    return [1, 3, 2, 4]\r\n```\r\n\u003c/details\u003e\r\n\r\n\u003cdetails\u003e\u003csummary\u003eReveal solution\u003c/summary\u003e\r\n\r\n```python\r\ndef sol():\r\n    import itertools\r\n    perms = sorted([list(p) for p in list(itertools.permutations(x))])\r\n    return perms[perms.index(x) + 1]\r\n```\r\n\u003c/details\u003e\r\n\r\nSolvers, post your solutions in the comments using the following formatting:\r\n````\r\n\u003cdetails\u003e\u003csummary\u003eReveal solution\u003c/summary\u003e\r\n\r\n```python\r\ndef sol():\r\n    return \"world\"  # replace with your solution\r\n```\r\n\u003c/details\u003e\r\n````\r\n","author":{"url":"https://github.com/TalSchuster","@type":"Person","name":"TalSchuster"},"datePublished":"2021-06-17T19:00:54.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/7/PythonProgrammingPuzzles/issues/7"}