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Well, the basic idea is fairly straightforward. We maintain a mappingmpfrom a value innumsto its position (index)i. Each time we meet an unseen value,... 阅读全文
posted @ 2015-06-02 23:18
jianchao-li
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This problem is a little tricky at first glance. However, if you have finished theHouse Robber problem, this problem can simply bedecomposed into two ... 阅读全文
posted @ 2015-06-02 23:17
jianchao-li
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Well, have you solved thenextPermutationproblem? If so and you have handled the cases of duplicates at that problem, your code can be used in this pro... 阅读全文
posted @ 2015-06-02 23:11
jianchao-li
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Well, have you solved thenextPermutationproblem? If so, your code can be used in this problem. The idea is fairly simple:sortnumsin ascending order, a... 阅读全文
posted @ 2015-06-02 23:09
jianchao-li
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Well, in fact the problem of next permutation has been studied long ago. From theWikipedia page, in the 14th century, a man named Narayana Pandita giv... 阅读全文
posted @ 2015-06-02 23:06
jianchao-li
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