Stars Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 8938 Accepted Submission(s): 3551 Problem Description Astronomers often examine star maps where stars are represented by points on a plan…
链接:https://www.lydsy.com/JudgeOnline/problem.php?id=3295 思路: 可以将这道题看成倒着插入,这样就可以转化成求逆序对数,用CDQ分治降维,正反用树状数组求两遍逆序对就好了. 这道题还可以用在线的树套树或者可持久化线段树来写.. 实现代码: #include<bits/stdc++.h> using namespace std; #define ll long long ; struct node{ int t,x,y; int kind,…
Pinball Game 3D Time Limit: 10000/5000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 1137 Accepted Submission(s): 477 Problem Description RD is a smart boy and excel in pinball game. However, playing common 2D…
Jam's problem again Time Limit: 5000/2500 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 640 Accepted Submission(s): 210 Problem Description Jam like to solve the problem which on the 3D-axis,given N(1≤N≤100000)…
题目链接: C. Subsequences time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output For the given sequence with n different elements find the number of increasing subsequences with k + 1 elements. It is…
E. e-Government time limit per test:1 second memory limit per test:256 megabytes input:standard input output:standard output The best programmers of Embezzland compete to develop a part of the project called "e-Government" — the system of automa…
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=2227 Find the nondecreasing subsequences Time Limit: 10000/5000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) …
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1394 Minimum Inversion Number Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 10…
题目链接 https://icpcarchive.ecs.baylor.edu/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=4923 problem description Last night, Kingdom of Light was attacked by Kingdom of Dark! The queen of Kingdom of Light, Queen Ar, was ca…
The k-th Largest Group Time Limit: 2000MS Memory Limit: 131072K Total Submissions: 8807 Accepted: 2875 Description Newman likes playing with cats. He possesses lots of cats in his home. Because the number of cats is really huge, Newman wants to g…
Buy Tickets Time Limit: 4000MS Memory Limit: 65536K Total Submissions: 19012 Accepted: 9442 Description Railway tickets were difficult to buy around the Lunar New Year in China, so we must get up early and join a long queue… The Lunar New Year wa…
Ping pong Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 3109 Accepted: 1148 Description N(3<=N<=20000) ping pong players live along a west-east street(consider the street as a line segment). Each player has a unique skill rank. To i…