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], [3,1,2], and [3,2,1]....
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其他好文 时间:
2015-04-21 20:45:08
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136
/* 题意:给一个集合,求所有的排列 做法:*/class Solution {public: vector >res;int count ; void dfs(int A[],vectornum,int n,int cur){ if(cur == n){//找...
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其他好文 时间:
2015-04-20 20:48:31
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168
The set [1,2,3,…,n] contains a total of n! unique permutations.By listing and labeling all of the permutations in order,We get the following sequence (ie, for n = 3):"123""132""213""231""312""321"Give...
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其他好文 时间:
2015-04-20 15:00:36
阅读次数:
116
题目:
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], [1,2,1], and [2,1,1].
这...
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其他好文 时间:
2015-04-19 21:29:02
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129
4423:Necklace一道计数问题,当时不会敲,先留着4424:Permutations签到题 1 /***Good Luck***/ 2 #define _CRT_SECURE_NO_WARNINGS 3 #include 4 #include 5 #include 6 #include...
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其他好文 时间:
2015-04-19 01:01:56
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177
题目:
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], [3,1,2], and [3,2,1].
思路分析:
思路一:
最容易想到...
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其他好文 时间:
2015-04-18 22:06:57
阅读次数:
162
题目地址:https://leetcode.com/problems/permutations/题目分析:很明显可以使用递归,先将起始位置与后面的每个数字交换位置,然后将起始位置往后移以为,以该起始位置为起点求排列,依次类推即可使用递归法。题目解答:import java.util.ArrayLis...
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其他好文 时间:
2015-04-15 13:24:58
阅读次数:
103
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:
2015-04-12 13:11:26
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118
Little penguin Polo likes permutations. But most of all he likes permutations of integers from 0 to n, inclusive.For permutation p?=?p0,?p1,?…,?pn, Polo has defined its beauty — number .Expression mean...
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其他好文 时间:
2015-04-08 18:08:05
阅读次数:
144
字典序排序生成算法
字典序法就是按照字典排序的思想逐一产生所有排列。
例如,由1,2,3,4组成的所有排列,从小到大的依次为:
1234, 1243, 1324, 1342, 1423, 1432,
2134, 2143, 2314, 2341, 2413, 2431,
3124, 3142, 3214, 3241, 3412, 3421,
4123, 4132,...
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编程语言 时间:
2015-04-08 18:03:57
阅读次数:
250