Permutations 第16页

leetcode-Permutations

Difficulty:MediumGivenacollectionofnumbers,returnallpossiblepermutations.Forexample,[1,2,3]havethefollowingpermutations:[1,2,3],[1,3,2],[2,1,3],[2,3,1],[3,1,2],and[3,2,1].classSolution{ vector>res; vo

ljlstart·2015-11-07 20:00

leetcode 47:Permutations II

题目：Givenacollectionofnumbersthatmightcontainduplicates,returnallpossibleuniquepermutations.Forexample,[1,1,2] havethefollowinguniquepermutations:[1,1,2], [1,2,1],and [2,1,1].思路：在leetcode46基础上改过来的，具体思路

onlyou2030·2015-11-07 16:00

leetcode 46:Permutations

题目：Givenacollectionofnumbers,returnallpossiblepermutations.Forexample,[1,2,3] havethefollowingpermutations:[1,2,3], [1,3,2], [2,1,3], [2,3,1], [3,1,2],and [3,2,1].思路：可以用带递归的回溯的方法来求解。由于固定的数字做不同的组合，我们在一

onlyou2030·2015-11-07 15:00

print all permutations of a given string

http://www.geeksforgeeks.org/write-a-c-program-to-print-all-permutations-of-a-given-string/ A permutation

·2015-11-07 10:22

POJ 2369 Permutations (置换的秩P^k = I)

题意给定一个置换形式如，问经过几次置换可以变为恒等置换思路就是求k使得P k = I. 我们知道一个置换可以表示为几个轮换的乘积，那么 k就是所有轮换长度的最小公倍数. 把一个置换转换成轮换的方法也很简单，从一个数出发按照置换图置换，直到置换到已经置换过的数，则这些数就构成一个轮换。代码 [cpp] #include <iostream> #include

·2015-11-07 10:42

POJ 2369 Permutations (置换的秩P^k = I)

题意给定一个置换形式如，问经过几次置换可以变为恒等置换思路就是求k使得P k = I. 我们知道一个置换可以表示为几个轮换的乘积，那么 k就是所有轮换长度的最小公倍数. 把一个置换转换成轮换的方法也很简单，从一个数出发按照置换图置换，直到置换到已经置换过的数，则这些数就构成一个轮换。代码 [cpp] #include <iostream> #include

·2015-11-07 10:39

Permutations

Permutations 问题： Given a collection of numbers, return all possible permutations.

·2015-11-03 21:34

LeetCode Permutations

class Solution { private: vector<vector<int> > result; public: vector<vector<int> > permute(vector<int> &num) { result.clear(); dfs(num,

·2015-11-02 19:29

（Problem 49）Prime permutations

The arithmetic sequence, 1487, 4817, 8147, in which each of the terms increases by 3330, is unusual in two ways: (i) each of the three terms are prime, and, (ii) each of the 4-digit numbers are permut

·2015-11-02 17:16

（Problem 62）Cubic permutations（待续）

In fact, 41063625 is the smallest cube which has exactly three permutations of its digits wh

·2015-11-02 17:16

Permutations

https://oj.leetcode.com/problems/permutations/ Given a collection of numbers, return all possible permutations

·2015-11-02 17:29

【leetcode】Permutations

题目描述： Given a collection of numbers, return all possible permutations.

·2015-11-02 17:10

poj 2369 Permutations

这是一道简单的置换群的问题； View Code #include<iostream> #include<cstdio> #include<cstdlib> #include<algorithm> #include<cmath> #include<queue> #include<set

·2015-11-02 15:07

Permutation Sequence

unique permutations.

·2015-11-02 14:37

【leetcode刷题笔记】Permutations II

Given a collection of numbers that might contain duplicates, return all possible unique permutations.

·2015-11-02 10:24

【leetcode刷提笔记】Permutations

Given a collection of numbers, return all possible permutations.

·2015-11-02 10:18

[LeetCode] Permutations II 排列

Given a collection of numbers that might contain duplicates, return all possible unique permutations.

·2015-11-01 14:49

UVa 11077 (循环分解递推) Find the Permutations

把{1, 2, 3,,, n}叫做自然排列本题便是求有多少个n元排列P要至少经过k次交换才能变为自然排列。首先将排列P看做置换，然后将其分解循环，对于每个长度为i的循环至少要交换i-1次才能归位。设有d(i, j)个i元排列至少交换j次才能变成自然排列。则有d(i, j) = d(i-1, j) + d(i-1, j-1) * (i-1) 对于元素i有两种选择，自己成一个长度为1

·2015-11-01 14:40

[Project Euler] Problem 24

If all of the permutations are listed numerically or alphabetically, we c

·2015-11-01 10:12

Permutations II

https://leetcode.com/problems/permutations-ii/ Given a collection of numbers that might contain duplicates

·2015-10-31 15:06

Permutation Sequence

unique permutations. By listing and labeling all of the permutations in order,We get the

·2015-10-31 15:01

codeforce 124B——全排列dfs——Permutations

You are given nk-digit integers. You have to rearrange the digits in the integers so that the difference between the largest and the smallest number was minimum. Digits should be rearranged by th

·2015-10-31 15:05

Permutation Sequence

unique permutations.

·2015-10-31 12:11

Permutations I & II

I Given a collection of numbers, return all possible permutations.

·2015-10-31 12:09

Permutations

Description: Given a collection of numbers, return all possible permutations.

·2015-10-31 12:36

leetcode[47]Permutations II

Given a collection of numbers that might contain duplicates, return all possible unique permutations.

·2015-10-31 11:32

leetcode[46]Permutations

Given a collection of numbers, return all possible permutations.

·2015-10-31 11:32

leetcode[60]Permutation Sequence

unique permutations.

·2015-10-31 11:31

《Cracking the Coding Interview》——第9章：递归和动态规划——题目5

代码： 1 // 9.5 Print all permutations of a

·2015-10-31 11:31

面试题28：字符串的排列

参见LeetCode-Permutations。本题扩展：如果不是求字符的所有排列，而是求字符的所有组合，应该怎么办？

·2015-10-31 11:58

[leetcode] permutations 排列

写了两个，一个是直接的递归实现： class Solution { public: void swap(vector<int> &num,int left,int right) { num[left] = num[left]^num[right]; num[right] = num[left]^num[right

·2015-10-31 10:42

LeetCode - Permutation Sequence

unique permutations.

·2015-10-31 10:06

【leetcode刷题笔记】Permutation Sequence

unique permutations.

·2015-10-31 10:35

Permutation Sequence [LeetCode]

unique permutations.

·2015-10-31 09:23

Permutations [LeetCode]

Given a collection of numbers, return all possible permutations.

·2015-10-31 09:20

[Leetcode] Permutation Sequence

unique permutations.

·2015-10-31 09:13

【leetcode】Permutations II (middle)

Given a collection of numbers that might contain duplicates, return all possible unique permutations.

·2015-10-31 09:25

URAL 1024 Permutations

URAL_1024 实际上就是去求若干循环节的最小公倍数，题目中说明了数据会保证最后结果不大于10^9，不过超int的情况还是很好构造出来的，让循环节长度分别等于一连串的素数即可。 #include<stdio.h> #include<string.h> #define MAXD 1010 int N, P[MAXD], v

·2015-10-31 09:16

[LeetCode] “全排列”问题系列(一) - 用交换元素法生成全排列及其应用，例题: Permutations I 和 II, N-Queens I 和 II，数独问题

二、上手最典型的permutation题目是这样的： Given a collection of numbers, return all possible permutations.

·2015-10-31 08:20

CSUOJ 1525 Algebraic Teamwork

In group theory, permutations – also known as bijective functions – play

·2015-10-31 08:30

[Leetcode] Permutations

Given a collection of numbers, return all possible permutations.

·2015-10-30 14:11

[Leetcode] Permutations II

Given a collection of numbers that might contain duplicates, return all possible unique permutations.

·2015-10-30 14:11

[LeetCode 题解]: Permutations

Given a collection of numbers, return all possible permutations.

·2015-10-30 14:05

[LeetCode 题解]: Permutation Sequcence

unique permutations.

·2015-10-30 14:05

[LeetCode 题解]： Permutations II

Given a collection of numbers that might contain duplicates, return all possible unique permutations.

·2015-10-30 14:04

leetcode Permutations

代码： 1 #include<iostream> 2 #include<vector> 3 4 using namespace std; 5 6 void getResult(vector<vector<int>> &result, vector<int> element, vector<int

·2015-10-30 14:27

Gargari and Permutations 多序列LIS+dp好题

http://codeforces.com/contest/463/problem/D 求k个序列的最长公共子序列。 k<=5 肯定不能直接LCS 网上题解全是图论解法...我就来个dp的解法吧首先，让我们创建的位置阵列的每个序列pos[k][N]。在这个数组，我们存储这n个数字（从1到n）在这k个序列中各个位置，然后按数大小排序。 DP [I]标记的最大

·2015-10-30 13:14

LeetCode - Permutations

Permutations 2013.12.15 05:08 Given a collection of numbers, return all possible permutations.

·2015-10-30 13:56

LeetCode - Permutations II

Permutations II 2013.12.15 05:30 Given a collection of numbers that might contain duplicates, return

·2015-10-30 13:56

【LeetCode】Permutations

Given a collection of numbers, return all possible permutations.

·2015-10-27 16:33

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