Just a Hook Time Limit:2000MS     Memory Limit:32768KB     64bit IO Format:%I64d & %I64u Description In the game of DotA, Pudge’s meat hook is actually the most horrible thing for most of the heroes. The hook is made up of several consecutive metalli…

>>点击进入原题测试<< 思路:这两天在学线段树,这个题直接手敲一下线段树就行了,都没有用上懒人标记.入门题 cin,cout会超时,记得加std::ios::sync_with_stdio(false); #include<string> #include<iostream> #define lson l,m,rt<<1 #define rson m+1,r,rt<<1|1 using namespace std; ; ]; ];…

解题关键:离线求区间第k小,主席树的经典裸题: 对主席树的理解:主席树维护的是一段序列中某个数字出现的次数,所以需要预先离散化,最好使用vector的erase和unique函数,很方便:如果求整段序列的第k小,我们会想到离散化二分和线段树的做法, 而主席树只是保存了序列的前缀和,排序之后,对序列的前缀分别做线段树,具有差分的性质,因此可以求任意区间的第k小,如果主席树维护索引,只需要求出某个数字在主席树中的位置,即为sort之后v中的索引:若要求第k大,建树时反向排序即可 #include<c…

Balanced Lineup Time Limit: 5000MS   Memory Limit: 65536K Total Submissions: 40687   Accepted: 19137 Case Time Limit: 2000MS Description For the daily milking, Farmer John's N cows (1 ≤ N ≤ 50,000) always line up in the same order. One day Farmer Joh…

Just a Hook Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 32434    Accepted Submission(s): 15927 Problem Description In the game of DotA, Pudge’s meat hook is actually the most horrible thing…

题目链接 描述 小Hi和小Ho在回国之后,重新过起了朝7晚5的学生生活,当然了,他们还是在一直学习着各种算法~ 这天小Hi和小Ho所在的学校举办社团文化节,各大社团都在宣传栏上贴起了海报,但是贴来贴去,有些海报就会被其他社团的海报所遮挡住.看到这个场景,小Hi便产生了这样的一个疑问——最后到底能有几张海报还能被看见呢? 于是小Ho肩负起了解决这个问题的责任:因为宣传栏和海报的高度都是一样的,所以宣传栏可以被视作长度为L的一段区间,且有N张海报按照顺序依次贴在了宣传栏上,其中第i张海报贴住的范围可…

Mosaic Time Limit: 10000/5000 MS (Java/Others)    Memory Limit: 102400/102400 K (Java/Others)Total Submission(s): 904    Accepted Submission(s): 394 Problem Description The God of sheep decides to pixelate some pictures (i.e., change them into pictur…

Description You have N integers, A1, A2, ... , AN. You need to deal with two kinds of operations. One type of operation is to add some given number to each number in a given interval. The other is to ask for the sum of numbers in a given interval. In…

Balanced LineupCrawling in process... Crawling failed Time Limit:5000MS     Memory Limit:65536KB     64bit IO Format:%I64d & %I64u Time Limit:5000MS     Memory Limit:65536KB     64bit IO Format:%I64d & %I64u Description For the daily milking, Farm…

题目链接 维护区间和,两个操作:一个是将某个区间设置成一个值,一个是将某个区间增加一个固定值 /**************************************************************/ 每走到一个区间就把lazy tag下放.下放的时候注意顺序! #include <cstdio> #include <cstring> ; struct NODE{ int l,r; int sum; int setTo,add; NODE(){setTo=ad…