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POJ 3067 Japan (树状数组求逆序数---经典)
Japan Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 27472 Accepted: 7430 Description Japan plans to welcome the ACM ICPC World Finals and a lot of roads原创 2017-04-23 17:08:17 · 382 阅读 · 0 评论 -
POJ 2481 Cows (树状数组)
Cows Time Limit: 3000MS Memory Limit: 65536K Total Submissions: 18542 Accepted: 6238 Description Farmer John's cows have discovered that the clover growing along the原创 2017-04-23 11:59:22 · 327 阅读 · 0 评论 -
POJ 2352 Stars (树状数组)
Stars Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 46492 Accepted: 20059 Description Astronomers often examine star maps where stars are represented by原创 2017-04-23 10:42:17 · 233 阅读 · 0 评论 -
POJ 2299 Ultra-QuickSort (树状数组求逆序数 || 线段树 +离散化)
Ultra-QuickSort Time Limit: 7000MS Memory Limit: 65536K Total Submissions: 60319 Accepted: 22343 Description In this problem, you have to analyze a particular sorting原创 2017-04-20 20:58:03 · 318 阅读 · 0 评论 -
HDU 4000 Fruit Ninja(树状数组)
Fruit Ninja Problem Description Recently, dobby is addicted in the Fruit Ninja. As you know, dobby is a free elf, so unlike other elves, he could do whatever he wants.But the hands of the elves ar原创 2017-04-20 15:47:13 · 437 阅读 · 0 评论 -
HDU 1394 Minimum Inversion Number(线段树 || 树状数组+逆序数 )
Minimum Inversion Number Problem Description The inversion number of a given number sequence a1, a2, ..., an is the number of pairs (ai, aj) that satisfy i aj. For a given sequence of numbers原创 2017-04-12 14:17:20 · 338 阅读 · 0 评论 -
蓝桥杯 历届试题 小朋友排队 树状数组+逆序数
AC代码: #include #include #include using namespace std; const int max1=1e5+10; const int max2=1e6+10; int C[max2]; long long tol[max1]; //打表 int num[max1]; //每个人的交换次数 int a[max1]; //输入的身高 int n; v原创 2017-03-08 00:18:23 · 623 阅读 · 0 评论 -
杭电1166敌兵布阵(树状数组)
#include #include using namespace std; int n; int c[50500]; int lowbit(int t){ return t&-t; } void update(int i,int j){ while(i c[i]+=j; i+=lowbit(i); } } int sum(int i){ int Sum1=0; w原创 2016-11-11 20:30:46 · 376 阅读 · 0 评论 -
hihoCoder 1524 : 逆序对 (树状数组)
#1524 : 逆序对 时间限制:10000ms 单点时限:1000ms 内存限制:256MB 描述 给定一个1-N的排列A1, A2, ... AN,如果Ai和Aj满足i i > Aj,我们就称(Ai, Aj)是一个逆序对。 求A1, A2 ... AN中所有逆序对的数目。 输入 第一行包含一个整数N。 第二行包含N个两两不同整数原创 2017-05-21 15:44:02 · 574 阅读 · 0 评论