题目链接 K-th Number #include <cstdio> #include <cstring> #include <iostream> #include <algorithm> using namespace std; #define rep(i, a, b) for (int i(a); i <= (b); ++i) #define lson i << 1, L, mid #define rson i << 1 |…
poj 2104 K-th Number 主席树+超级详细解释 传送门:K-th Number 题目大意:给出一段数列,让你求[L,R]区间内第几大的数字! 在这里先介绍一下主席树! 如果想了解什么是主席树,就先要知道线段树,主席树就是n棵线段树,因为线段树只能维护最大值或者最小值,要想求出第二大的数字怎么办呢?两颗线段树呗!好,那么第n大呢,就可以构造n棵线段树,这样的内存是显然会爆掉的,那么怎么办呢?因为每一次更新都是更新的是从叶子节点到根节点的一条路,路的长度大约是logn,如下图红色的为…
[POJ2104][HDU2665]K-th Number Description You are working for Macrohard company in data structures department. After failing your previous task about key insertion you were asked to write a new data structure that would be able to return quickly k-th…
Problem Kth Number Solution 裸的主席树,模板题.但是求k大的时候需要非常注意,很多容易写错的地方.卡了好久.写到最后还给我来个卡空间. 具体做法参见主席树论文<可持久化数据结构研究>. AC Code #include "cstdio" #include "iostream" #include "cstring" #include "algorithm" using namespace…
Kth number Time Limit: 15000/5000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 5425 Accepted Submission(s): 1760 Problem Description Give you a sequence and ask you the kth big number of a inteval. Input The…
题目链接:http://poj.org/problem?id=2104 Description You are working for Macrohard company in data structures department. After failing your previous task about key insertion you were asked to write a new data structure that would be able to return quickl…
K-th Number Time Limit: 20000MS Memory Limit: 65536K Total Submissions: 51440 Accepted: 17594 Case Time Limit: 2000MS Description You are working for Macrohard company in data structures department. After failing your previous task about key inse…
K-th Number Input The first line of the input file contains n --- the size of the array, and m --- the number of questions to answer (1 <= n <= 100 000, 1 <= m <= 5 000). The second line contains n different integer numbers not exceeding 109 b…
http://acm.hdu.edu.cn/showproblem.php?pid=2665 [ poj 2104 2761 ] 改变一下输入就可以过 http://poj.org/problem?id=2104 http://poj.org/problem?id=2761 Kth number Time Limit: 15000/5000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submissio…
题目描述 You are working for Macrohard company in data structures department. After failing your previous task about key insertion you were asked to write a new data structure that would be able to return quickly k-th order statistics in the array segmen…
K-th Number Time Limit: 20000MS Memory Limit: 65536K Total Submissions: 59327 Accepted: 20660 Case Time Limit: 2000MS Description You are working for Macrohard company in data structures department. After failing your previous task about key inse…
仍旧在练习线段树中..这道题一开始没有完全理解搞了一上午,感到了自己的shabi.. Minimum Inversion Number Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 15527 Accepted Submission(s): 9471 Problem Description The inversion number of a…
主席树 Description You are working for Macrohard company in data structures department. After failing your previous task about key insertion you were asked to write a new data structure that would be able to return quickly k-th order statistics in the a…
K-th Number Time Limit: 20000MS Memory Limit: 65536K Total Submissions: 44952 Accepted: 14951 Case Time Limit: 2000MS Description You are working for Macrohard company in data structures department. After failing your previous task about key inse…
Kth number Time Limit: 15000/5000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 37 Accepted Submission(s): 25 Problem Description Give you a sequence and ask you the kth big number of a inteval. Input The first l…
You are working for Macrohard company in data structures department. After failing your previous task about key insertion you were asked to write a new data structure that would be able to return quickly k-th order statistics in the array segment. Th…
题目链接: http://poj.org/problem?id=2104 K-th Number Time Limit: 20000MSMemory Limit: 65536K 问题描述 You are working for Macrohard company in data structures department. After failing your previous task about key insertion you were asked to write a new data…
Kth number Time Limit: 15000/5000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Problem Description Give you a sequence and ask you the kth big number of a inteval. Input The first line is the number of the test cases. For each test…
Minimum Inversion Number Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 25092 Accepted Submission(s): 14816 Problem Description The inversion number of a given number sequence a1, a2, ..., a…
明知道是线段树,却写不出来,搞了半天,戳,没办法,最后还是得去看题解(有待于提高啊啊),想做道题还是难啊. 还是先贴题吧 HDU-1394 Minimum Inversion Number Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 8324 Accepted Submission(s): 5115 Problem Descri…
K-th Number Time Limit: 20000MS Memory Limit: 65536K Case Time Limit: 2000MS Description You are working for Macrohard company in data structures department. After failing your previous task about key insertion you were asked to write a new data stru…
