POJ3468(线段树区间维护)】的更多相关文章

A Simple Problem with Integers Time Limit: 5000MS   Memory Limit: 131072K Total Submissions: 85502   Accepted: 26556 Case Time Limit: 2000MS Description You have N integers, A1, A2, ... , AN. You need to deal with two kinds of operations. One type of…
传送门:Color the ball Color the ball Time Limit: 9000/3000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 25511    Accepted Submission(s): 12393 Problem Description N个气球排成一排,从左到右依次编号为1,2,3....N.每次给定2个整数a b(a <= b),lele…
题目链接: http://poj.org/problem?id=3468 题意: 输入 n, m表初始有 n 个数, 接下来 m 行输入, Q x y 表示询问区间 [x, y]的和: C x y z 表示区间 [x, y] 内所有数加上 z : 思路: 线段树区间更新&区间求和模板: 代码: #include <iostream> #include <stdio.h> #define ll long long #define lson l, mid, rt <<…
题意:a数组初始全为0,b数组题目给你,有两种操作: 思路:dls的思路很妙啊,我们可以将a初始化为b,加一操作改为减一,然后我们维护一个最小值,一旦最小值为0,说明至少有一个ai > bi,那么找出所有为0的给他的最终结果加上一并且重置为bi,维护一个区间和,询问时线段树求和.一开始updateMin没加判断,单个复杂度飙到nlog(n),疯狂TLE... 代码: #include<cstdio> #include<vector> #include<stack>…
我的线段树真的没救了......还是多练几道吧....... 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…
A Simple Problem With Integers POJ-3468 这题是区间更新的模板题,也只是区间更新和区间查询和的简单使用. 代码中需要注意的点我都已经标注出来了,容易搞混的就是update函数里面还需要计算sum数组.因为这里查询的时候是直接用sum查询结点. //区间更新,区间查询 #include<iostream> #include<cstdio> #include<algorithm> #include<cstring> #inc…
Tunnel Warfare Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 2396    Accepted Submission(s): 886 Problem Description During the War of Resistance Against Japan, tunnel warfare was carried out…
LCIS Time Limit: 6000/2000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 5951    Accepted Submission(s): 2578 Problem Description Given n integers.You have two operations:U A B: replace the Ath number by B. (index…
https://vjudge.net/problem/POJ-3468 线段树区间更新(lazy数组)模板题 #include<iostream> #include<cstdio> #include<queue> #include<cstring> #include<algorithm> #include<cmath> #include<map> #define lson l, m, rt<<1 #define…
http://acm.hdu.edu.cn/showproblem.php?pid=5475 An easy problem Time Limit: 8000/5000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 755 Accepted Submission(s): 431 Problem Description One day, a useless calculator was…