这题目意思非常easy,就是给你一个数组,然后让你又一次排好序,排序有要求的,每次仅仅能交换两个元素的位置,交换须要一个代价 就是两个元素之和,问你把数组重小到大排好最少须要多少代价 可能一開始想不到逆序数,我是专门做专题往那边想才想到的,举个样例吧 数组: 9 1 0 5 4 此时到 0 的时候,我们先手写一下最小代价,然后再依照自己的推測去看看,就是当前扫到0,那么前面比它大的数有2个,所以先 部分代价为 2 * 0,然后再加上前面比它大的数 也就是9 和1 ,那么最小代价为10,发现跟手算…

题意: 输入一行数字,查询第i个数到第j个数之间的最大值.可以修改其中的某个数的值. 输入: 包含多组输入数据. 每组输入首行两个整数n,m.表示共有n个数,m次操作. 接下来一行包含n个整数. 接下来m行,每行包含一个字母s,两个整数a,b. 当s为’Q’,表示查询第a个数到第b个数之间的最大值. 当s为’U’,表示将第a个数更改为b. 输出: 每次查询输出一个结果,每次输出占一行. 题解: 点修改区间求最值,可以用树状数组模板. 具体见代码—— #include <cstdio> #inc…

Cow Sorting Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 4766    Accepted Submission(s): 1727 Problem Description Sherlock's N (1 ≤ N ≤ 100,000) cows are lined up to be milked in the evening.…

Cow Sorting Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2185    Accepted Submission(s): 683 Problem Description Sherlock's N (1 ≤ N ≤ 100,000) cows are lined up to be milked in the evening.…

\(\mathrm{Sleepy Cow Sorting}\) 问题描述 LG5200 题解 树状数组. 设\(c[i]\)代表\([1,i]\)中归位数. 显然最终的目的是将整个序列排序为一个上升序列,于是倒序枚举,先把最后有序的插入. 剩下来前面无序的就是要操作的,于是直接输出操作次数. 接下来方案很容易构造. \(\mathrm{Code}\) #include<bits/stdc++.h> using namespace std; void read(int &x){ x=0;…

Necklace Time Limit: 15000/5000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 4604    Accepted Submission(s): 1581 Problem Description Mery has a beautiful necklace. The necklace is made up of N magic balls. Each b…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=2838 Cow Sorting Problem Description Sherlock's N (1 ≤ N ≤ 100,000) cows are lined up to be milked in the evening. Each cow has a unique "grumpiness" level in the range 1...100,000. Since grumpy cow…

Swaps and Inversions Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2315    Accepted Submission(s): 882 Problem Description Long long ago, there was an integer sequence a.Tonyfang think this se…

E. Cards Sorting time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Vasily has a deck of cards consisting of n cards. There is an integer on each of the cards, this integer is between 1 and 10…

Group Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 1959    Accepted Submission(s): 1006 Problem Description There are n men ,every man has an ID(1..n).their ID is unique. Whose ID is i and i…