Next Permutation Given a list of integers, which denote a permutation. Find the next permutation in ascending order. Notice The list may contains duplicate integers. Example For [1,3,2,3], the next permutation is [1,3,3,2] For [4,3,2,1], the next per…

1053. Previous Permutation With One Swap https://leetcode.com/problems/previous-permutation-with-one-swap/ 题意:Given an array A of positive integers (not necessarily distinct), return the lexicographically largest permutation that is smaller than A, t…

A reverse version of the Dictionary algorithm :) If you AC-ed "Next Permutation II", copy it over and just reverse the conditions. class Solution { public: /** * @param nums: An array of integers * @return: An array of integers that's previous p…

Similar to next permutation, the steps as follow: 1) Find k in the increasing suffix such that nums[k] > nums[k+1], if there is no such element, the permutation is the smallest like [0, 1, 2,... n], reverse it, we can get the previous permutaton. 2)…

题目 上一个排列 给定一个整数数组来表示排列,找出其上一个排列. 样例 给出排列[1,3,2,3],其上一个排列是[1,2,3,3] 给出排列[1,2,3,4],其上一个排列是[4,3,2,1] 注意 排列中可能包含重复的整数 解题 排列的特征 123 的排列依次是:123.132.213.231.312.321 要点: 1.整体来说是升序的 2.对一个数而言,各位数字中,大的数字越靠后,这个数在排列的位置越靠前,同样,小的数字越靠前,这个数在排列的位置越靠前 参考1 参考2 上面说的方法好像都…

题目如下: Given an array A of positive integers (not necessarily distinct), return the lexicographically largest permutation that is smaller than A, that can be made with one swap (A swap exchanges the positions of two numbers A[i] and A[j]).  If it cann…

Given a list of integers, which denote a permutation. Find the previous permutation in ascending order. Note The list may contains duplicate integers. Example For [1,3,2,3], the previous permutation is [1,2,3,3] For [1,2,3,4], the previous permutatio…

Yet Another Source Code for LintCode Current Status : 232AC / 289ALL in Language C++, Up to date (2016-02-10) For more problems and solutions, you can see my LintCode repository. I'll keep updating for full summary and better solutions. See cnblogs t…

  非变易算法 /* 第21章 非变易算法 Non-modifying sequence operations 21.0 advance, distance 为了了解模板,先了解一下这两个迭代器操作函数 21.1 逐个容器元素for_each for_each Apply function to range (template function) 21.2 查找容器元素find find Find value in range (function template) 21.3 条件查找容器元素f…

  第23章 排序算法  Sorting:1 sort Sort elements in range (function template)2 stable_sort Sort elements preserving order of equivalents (function template)3 partial_sort Partially Sort elements in range (function template)4 partial_sort_copy Copy and parti…

贪心基础 贪心(Greedy)常用于解决最优问题,以期通过某种策略获得一系列局部最优解.从而求得整体最优解. 贪心从局部最优角度考虑,只适用于具备无后效性的问题,即某个状态以前的过程不影响以后的状态.紧接下来的状态仅与当前状态有关.和分治.动态规划一样,贪心是一种思路,不是解决某类问题的具体方法. 应用贪心的关键,是甄别问题是否具备无后效性.找到获得局部最优的策略.有的问题比较浅显,例如一道找零钱的题目 LeetCode 860. Lemonade Change: // 860. Lemonad…

reference url:http://www.cplusplus.com/reference/algorithm reference url:https://blog.csdn.net/Swust_Zeng_zhuo_K/article/details/80113384 <algorithm> Standard Template Library: Algorithms The header <algorithm> A range is any sequence of objec…

1051. Height Checker Students are asked to stand in non-decreasing order of heights for an annual photo. Return the minimum number of students not standing in the right positions.  (This is the number of students that must move in order for all stude…

Implement next permutation, which rearranges numbers into the lexicographically next greater permutation of numbers. If such arrangement is not possible, it must rearrange it as the lowest possible order (ie, sorted in ascending order). The replaceme…

Given a permutation which contains no repeated number, find its index in all the permutations of these numbers, which are ordered in lexicographical order. The index begins at 1. Example Given [1,2,4], return 1. 分析:http://www.cnblogs.com/EdwardLiu/p/…

1. Jump Game Given an array of non-negative integers, you are initially positioned at the first index of the array. Each element in the array represents your maximum jump length at that position. Determine if you are able to reach the last index. For…

异常处理汇总-开发工具  http://www.cnblogs.com/dunitian/p/4522988.html cleanup failed to process the following paths:xxx Previous operation has not finished; run 'cleanup' if it was interrupted 解决方法有两个,一个是用sqlite清除下数据库wc.db的work_queue,这种网上说的比较多.我说下第二种方法:这个需要svn…

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" "3…

Given a string s, return all the palindromic permutations (without duplicates) of it. Return an empty list if no palindromic permutation could be form. For example: Given s = "aabb", return ["abba", "baab"]. Given s = "a…

Given a string, determine if a permutation of the string could form a palindrome. For example,"code" -> False, "aab" -> True, "carerac" -> True. Hint: Consider the palindromes of odd vs even length. What difference d…

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" "3…

Implement next permutation, which rearranges numbers into the lexicographically next greater permutation of numbers. If such arrangement is not possible, it must rearrange it as the lowest possible order (ie, sorted in ascending order). The replaceme…

1.svn在提交文件是报错:previous operation has not finished;run 'cleanup' if it was interrupted2.原因,工作队列被占用,只需在svn项目数据库 .svn文件夹下wc.db的表work_queue 清空即可,[delete from work_queue] 3.项目 clear up 操作,4.成功!…

今天在svn提交的时候它卡顿了一下,我以为已经提交完了,就按了一下,结果就再也恢复不了,也继续不了了... 报错 cleanup failed–previous operation has not finished; run cleanup if it was interrupted 试过执行cleanup,结果也是失败,要更新先要cleanup,但是cleanup的失败信息又叫我cleanup……这是一个死循环! 感觉这是一个设计上的缺陷:使用工作队列来保存数据,后一个操作依赖于前一个操作的结…

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" "3…

APACHE启动成功,但无法接受任何请求,查看ERROR.LOG文件[warn] pid file /opt/apache/logs/httpd.pid overwritten - Unclean shutdown of previous Apache run?大概意思是说PID文件一直被一个程序改写,我测试系统上还运行了RESIN,只要停止了就可以了 resin/bin/httpd.sh stop resin/bin/httpd.sh stop resin/bin/httpd.sh stop…

今天改完代码提交时,提交接近完成但窗口还未关闭电脑蓝屏了.夏天来了,电脑比人还怕热啊~~~   心里咯噔一下,估计svn又会出一些莫名其妙的问题了. 果然,待电脑重启后开eclipse,文件还是新增状态,提交报错,提示需要执行clean up . 但svn执行clean up命令时报错“Previous operation has not finished; run 'cleanup' if it was interrupted”. 无论你到那个父层次的目录执行“clean up “,都是报一样…

UVA - 11525 Permutation 题意:输出1~n的所有排列,字典序大小第∑k1Si∗(K−i)!个 学了好多知识 1.康托展开 X=a[n]*(n-1)!+a[n-1]*(n-2)!+...+a[i]*(i-1)!+...+a[1]*0! 其中a[i]为第i位是i往右中的数里 第几大的-1(比他小的有几个). 其实直接想也可以,有点类似数位DP的思想,a[n]*(n-1)!也就是a[n]个n-1的全排列,都比他小 一些例子 http://www.cnblogs.com/hxsyl…

For research purpose, I've read a lot materials on permutation test issue. Here is a summary. Should be useful. Still, thanks for contributors online. P value calculation Because the actual value is one of those permutations, I would like to change t…

(M) Permutations (M) Permutations II (M) Permutation Sequence (M) Palindrome Permutation II…