线段树秀操作题. 奇怪的计算器 有 N 个数,一共会对这 N 个数执行 M 个指令(对没个数执行的指令都一样),每一条指令可以是以下四种指令之一:(这里 a 表示一个正整数) 加上 a 减去 a 乘以 a 加上 a*X(X 是数最开始的初值) 该计算器有个奇怪的特点.每进行一个指令,若结果大于 R则变成 R,同理若结果小于 L,则变成 L.求这 N 个数最后的结果. N, M ≤ 200000 题解 重要性质:无论题目里面的修改怎么执行,所有数的相对大小(即排名)不变.所以我们每次的chkmin…
Gorgeous Sequence Time Limit: 6000/3000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 2150 Accepted Submission(s): 594 Problem Description There is a sequence a of length n. We use ai to denote the i-th elemen…
Gorgeous Sequence Time Limit: 6000/3000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 349 Accepted Submission(s): 57 Problem Description There is a sequence a of length n. We use ai to denote the i-th element…
http://www.shuizilong.com/house/archives/hdu-5306-gorgeous-sequence/ Gorgeous Sequence Time Limit: 6000/3000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others) Total Submission(s): 440 Accepted Submission(s): 87 Problem Description Th…
Gorgeous Sequence Time Limit: 6000/3000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 6946 Accepted Submission(s): 1784 Problem Description There is a sequence a of length n. We use ai to denote the i-th eleme…
题目大意:给你一个序列a,你有三个操作,0: x y t将a[x,y]和t取min:1:x y求a[x,y]的最大值:2:x y求a[x,y]的sum 题解:首先很明显就是线段树裸题,那么考虑如何维护 区间最大值和区间sum很好维护,0操作不好做,那么考虑怎么快速解决0操作 很容易想到维护区间最大值和区间是否全部相同,这是一个做法,但是时间复杂度上却不正确,但也给了我们一个思路,可以通过维护最大值之类的数来加快操作 一个不行就两个,于是考虑维护次大值,那么每次0操作就有三种情况,一:比区间最大值…
There is a sequence aa of length nn. We use aiai to denote the ii-th element in this sequence. You should do the following three types of operations to this sequence. 0 x y t0 x y t: For every x≤i≤yx≤i≤y, we use min(ai,t)min(ai,t) to replace the orig…
功能:备份存储过程,视图,函数触发器,Sequence序列号等准备工作:--1.创建文件夹 :'E:/OracleBackUp/ProcBack';--文本存放的路径--2.执行:create or replace directory MyProcBakPath as 'E:/OracleBackUp/ProcBack';--3.赋权限:sqlplus /nologconn user/pswd as sysdbagrant select on DBA_OBJECTS to user;--4.创建…
环境:Oracle 11.2.0.4 DG 故障现象: 客户在备库告警日志中发现GAP sequence提示信息: Mon Nov 21 09:53:29 2016 Media Recovery Waiting for thread 1 sequence 12034 Fetching gap sequence in thread 1, gap sequence 12034-12078 Mon Nov 21 09:55:20 2016 FAL[client]: Failed to request…
The set [1,2,3,-,n] contains a total of n! unique permutations. By listing and labeling all of the permutations in order,We get the following sequence (ie, for n = 3): "123" "132" "213" "231" "312" "3…
Check whether the original sequence org can be uniquely reconstructed from the sequences in seqs. The org sequence is a permutation of the integers from 1 to n, with 1 ≤ n ≤ 104. Reconstruction means building a shortest common supersequence of the se…
Given a binary tree, find the length of the longest consecutive sequence path. The path refers to any sequence of nodes from some starting node to any node in the tree along the parent-child connections. The longest consecutive path need to be from p…
Given an array of numbers, verify whether it is the correct preorder traversal sequence of a binary search tree. You may assume each number in the sequence is unique. Follow up: Could you do it using only constant space complexity? 这道题让给了我们一个一维数组,让我们…