题目链接:Permutations II
Given a collection of numbers that might contain duplicates, return all possible unique permutations.
For example,
[1,1,2] have the following unique permutations:
[1,1,2], [...
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其他好文 时间:
2015-03-03 11:50:31
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176
Given a collection of numbers that might contain duplicates, return all possible unique permutations.For example,[1,1,2]have the following unique perm...
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其他好文 时间:
2015-02-24 01:52:56
阅读次数:
152
Given a collection of numbers that might contain duplicates, return all possible unique permutations.For example,[1,1,2]have the following unique perm...
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其他好文 时间:
2015-02-12 18:20:28
阅读次数:
110
Given a collection of numbers, return all possible permutations.For example,[1,2,3]have the following permutations:[1,2,3],[1,3,2],[2,1,3],[2,3,1],[3,...
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其他好文 时间:
2015-02-12 18:16:24
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136
For example,
[1,2,3] have
the following permutations:
[1,2,3], [1,3,2], [2,1,3], [2,3,1], [3,1,2],
and [3,2,1].
全排列:
从1开始递归,然后对2递归,最后对3递归
顺序是先输出 1 2 3 1 3 2 2 1 3 2 3 1 ..........
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编程语言 时间:
2015-02-12 09:19:50
阅读次数:
173
Given a collection of numbers, return all possible permutations.For example,[1,2,3]have the following permutations:[1,2,3],[1,3,2],[2,1,3],[2,3,1],[3,...
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其他好文 时间:
2015-02-10 14:41:01
阅读次数:
110
Given a collection of numbers that might contain duplicates, return all possible unique permutations.For example,[1,1,2]have the following unique perm...
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其他好文 时间:
2015-02-10 14:37:42
阅读次数:
208
题意:求使所给公式值最大的第m个排列。
思路:假设已知使f(p)最大的n-1的排列,那么对于使f(p)最大的n的排列,把n放在(n-1)两边均可。因为n放在(n-1)两边,增值为
1+2+...+n,而如果不放在两边,(n-1)到n之间的值n摆放位置,对于i,如果m
那么i摆在pos,不然放到可放到的最后面,即last位置。因为接下来(i+1)一定在i左边,而之后比(i+1)大也一定在i左边...
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其他好文 时间:
2015-02-09 23:11:13
阅读次数:
201
You are given a permutation p of numbers 1,?2,?…,?n. Let’s define f(p) as the following sum:Find the lexicographically m-th permutation of length n in the set of permutations having the maximum possibl...
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其他好文 时间:
2015-02-09 18:24:14
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159
The set[1,2,3,…,n]contains a total ofn! unique permutations.By listing and labeling all of the permutations in order,We get the following sequence (ie...
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其他好文 时间:
2015-02-09 15:34:37
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189