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…

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…

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…

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…

51-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. 注意事项 排列中可能包含重复的整数 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] 标签 排列 LintCode 版权所有 思路 所谓上一个排列,是指在排列中,位于此序列前的一个序列. 如 [1,2,3],其排列为:[1,2,3].[1,3,2].[2,1,3].[2,3,1].[3,1,2].[3,2,1] 则 [2,1,3] 的上一个排序为 [2…

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. class Solution { public: /** * @param…

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…

刷题备忘录,for bug-free leetcode 396. Rotate Function 题意: Given an array of integers A and let n to be its length. Assume Bk to be an array obtained by rotating the array A k positions clock-wise, we define a "rotation function" F on A as follow: F(k…

刷题备忘录,for bug-free 招行面试题--求无序数组最长连续序列的长度,这里连续指的是值连续--间隔为1,并不是数值的位置连续 问题: 给出一个未排序的整数数组,找出最长的连续元素序列的长度. 如: 给出[100, 4, 200, 1, 3, 2], 最长的连续元素序列是[1, 2, 3, 4].返回它的长度:4. 你的算法必须有O(n)的时间复杂度 . 解法: 初始思路 要找连续的元素,第一反应一般是先把数组排序.但悲剧的是题目中明确要求了O(n)的时间复杂度,要做一次排序,是不能达…

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…