SwapSort 题目链接: http://acm.hust.edu.cn/vjudge/contest/121332#problem/A Description In this problem your goal is to sort an array consisting of n integers in at most n swaps. For the given array find the sequence of swaps that makes the array sorted in…
题目链接:http://codeforces.com/problemset/problem/489/A 题目意思:给出一个 n 个无序的序列,问能通过两两交换,需要多少次使得整个序列最终呈现非递减形式.这个交换次数最多为 n 次.如果原来已经非递减排列好,输出次数为0:否则不但要输出次数,还需要输出每次交换的数组下标. 比赛的时候想复杂了,用了pair来记录值和坐标,还要开多一个pair类型的 b 数组来保存已排好序的序列,然后跟原序列比较......哪个复杂啊---然后校园网12:00 断网了…
A. SwapSort time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output In this problem your goal is to sort an array consisting of n integers in at most n swaps. For the given array find the sequence…
一.介绍 1.算法的时间和空间间复杂度 2.特点 Running time is insensitive to input. The process of finding the smallest item on onepass through the array does not give much information about where the smallest itemmight be on the next pass. This property can be disadvant…