LeetCode31 Pass #67
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LeetCode31 Pass #67
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Sorry I just moved to Europe this month so I didn't have a computer. As for this question I think your thought was a bit too complicated. I'd recommend you to write down some cases on paper and try to get if there's any pattern that you can find for next permutation. You should be able to solve this question in O(N) with a very simple solution, but you just need to find it first. |
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Time complexity : O(NM)