题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=3743 Frosh Week Time Limit : 2000/1000ms (Java/Other)   Memory Limit : 32768/32768K (Java/Other) Total Submission(s) : 5   Accepted Submission(s) : 1 Font: Times New Roman | Verdana | Georgia Font Size: …

题目链接: http://acm.hust.edu.cn/vjudge/contest/122094#problem/H Frosh Week Time Limit:8000MSMemory Limit:0KB 问题描述 During Frosh Week, students play various fun games to get to know each other and compete against other teams. In one such game, all the fro…

H - Frosh Week Crawling in process... Crawling failed Time Limit:1000MS     Memory Limit:32768KB     64bit IO Format:%I64d & %I64u Description During Frosh Week, students play various fun games to get to know each other and compete against other team…

问题 C: Frosh Week 时间限制: 4 Sec  内存限制: 128 MB提交: 145  解决: 63[提交][状态][讨论版][命题人:admin] 题目描述 Professor Zac is trying to finish a collection of tasks during the first week at the start of the term. He knows precisely how long each task will take, down to th…

Problem Description During Frosh Week, students play various fun games to get to know each other and compete against other teams. In one such game, all the frosh on a team stand in a line, and are then asked to arrange themselves according to some cr…

H - Frosh Week Time Limit:1000MS     Memory Limit:32768KB     64bit IO Format:%I64d & %I64u Description During Frosh Week, students play various fun games to get to know each other and compete against other teams. In one such game, all the frosh on a…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=3743 题目意思就是给你一个长为n的序列,让你求逆序对.我用的是归并排序来求的.归并排序有一个合并的过程,分前后两段,当a[i] > a[j]时,说明a[j]比前面那段啊[i],a[i+1],a[i+2]....,a[mid],比这些都要小,所以总逆序对数要加上mid-i+1. // File Name: HDU3743.cpp // Author: xiaxiaosheng // Created T…

归并排序求逆序数 #include <iostream> #include <cstdio> using namespace std; #define maxn 1000005 int a[maxn], temp[maxn]; long long ans; void MergeSort(int a[], int l, int mid, int r) { ; int i = l, n = mid, j = mid, m = r; while ( i<n && j…

离散化加 求逆序数: 求逆序数的方法 一个是归并排序  一个是树状数组 #include<bits/stdc++.h> using namespace std; int n; struct node { int v; int id; }s[]; ]; bool cmp(node a,node b) { return a.v<b.v; } int lowbit(int i) { return i&-i; } int update(int x,int v) { while(x<…

Prerequisites?Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 1220 Accepted Submission(s): 698 Problem DescriptionFreddie the frosh has chosen to take k courses. To meet the degree requirements, he…