[HDU3333]Turing Tree

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HDU3333 Turing Tree（线段树）

题目 Source http://acm.hdu.edu.cn/showproblem.php?pid=3333 Description After inventing Turing Tree, 3xian always felt boring when solving problems about intervals, because Turing Tree could easily have the solution. As well, wily 3xian made lots of new…

HDU3333 Turing Tree 树状数组+离线处理

Turing Tree Time Limit: 6000/3000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 4948 Accepted Submission(s): 1746 Problem Description After inventing Turing Tree, 3xian always felt boring when solving problems a…

hdu3333 Turing Tree 2016-09-18 20:53 42人阅读评论(0) 收藏

Turing Tree Time Limit: 6000/3000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 4658 Accepted Submission(s): 1640 Problem Description After inventing Turing Tree, 3xian always felt boring when solving problems…

ACM学习历程——HDU3333 Turing Tree（线段树 && 离线操作）

Problem Description After inventing Turing Tree, 3xian always felt boring when solving problems about intervals, because Turing Tree could easily have the solution. As well, wily 3xian made lots of new problems about intervals. So, today, this sick t…

HDU-3333 Turing Tree 分块求区间不同数和

HDU-3333 Turning Tree 题目大意:先给出n个数字.面对q个询问区间,输出这个区间不同数的和. 题解:这道题有几种解法.这里讲一下用分块解决的方法.( 离线树状数组解法看这里 Hdu-3333 Turning Tree (离线树状数组/线段树)~~~) 以(a[i]上一次出现的位置last, a[i])数字对作为基本元素做分块.那么容易想到对于每一个询问(l,r),如果该元素的last<l那么这个元素就应该加入到ans中. 那么我们对于每一个分块,以last作为关键字排序.对…

HDU3333 Turing Tree 离线树状数组

题意:统计一段区间内不同的数的和分析:排序查询区间,离线树状数组 #include <cstdio> #include <cmath> #include <cstring> #include <algorithm> using namespace std; typedef long long LL; ; ; LL c[N]; int n,q,x,y,T,pre[N]; struct Node{ int v,id; }a[N]; bool cmpv(Node…

hdu-3333 Turing Tree 离线区间+树状数组（区间不同数的和）

题目链接: http://acm.hdu.edu.cn/showproblem.php?pid=3333 题目大意: 给出一数组,以及m个查询区间,每次查询该区间不同数字的和.相同数字只加一次. 解题思路: 离线区间,按照区间右端点进行排序. 这样可以从左到右扫一遍,用尺取法一个一个将数字放入树状数组中. 如果这个数字已经在树状数组里面,记录之前的下标,再从树状数组中删去之前下标的这个数字,在当前下标添加该数字.这样可以保证每一步操作,都会使得树状数组中没有重复元素.这样可以直接用树状数组求不同…