用splay做了一遍. 建树时是按照数列序号从小到大排好的,每个节点左子树的序号小于右子树的序号及这个节点本身.由于查询[l,r]要伸展l-1,r+1所以我们要多加2个结点,保证边界处理时不出问题.由于这样每次查找l-1时,要找的应该是l(r+1也是找r+2). #include <iostream> #include <stdio.h> #include <string.h> #include <algorithm> #define ll __int64…

秋实大哥与花 Time Limit: 3000/1000MS (Java/Others)     Memory Limit: 65535/65535KB (Java/Others) Submit Status 秋实大哥是一个儒雅之人,昼听笙歌夜醉眠,若非月下即花前. 所以秋实大哥精心照料了很多花朵.现在所有的花朵排成了一行,每朵花有一个愉悦值. 秋实大哥每天要对着某一段连续的花朵歌唱,然后这些花朵的愉悦值都会增加一个相同的值v(v可能为负). 同时他想知道每次他唱完歌后这一段连续的花朵的愉悦值总…

hdu1556 Color the ball Time Limit: 9000/3000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 9143    Accepted Submission(s): 4677 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便为骑上他的"小飞…

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. Input The firs…

POJ 3468.A Simple Problem with Integers 这个题就是成段的增减以及区间查询求和操作. 代码: #include<iostream> #include<cstdio> #include<cstring> #include<cmath> #include<cstdlib> #include<algorithm> #include<queue> #include<map> usi…

题目链接 题意: 只有这两种操作 C a b c" means adding c to each of Aa, Aa+1, ... , Ab. -10000 ≤ c ≤ 10000."Q a b" means querying the sum of Aa, Aa+1, ... , Ab. 代码风格更新后: #include <iostream> #include <cstdio> #include <cstring> #include &l…

POJ3225.Help with Intervals 这个题就是对区间的各种操作,感觉这道题写的一点意思都没有,写到后面都不想写了,而且更神奇的是,自己的编译器连结果都输不出来,但是交上就过了,也是令人头大的操作,这题没意思,不要写了.我写到后面就写不下去了,直接去看了别人的代码... 代码: #include<iostream> #include<cstring> #include<cstdio> #include<cmath> #include<…

#include<iostream> #include<string.h> #include<cstdio> long long num[100010]; using namespace std; struct st { int l; int r; long long sum; long long a; } p[400100]; void build(int t,int l,int r) { p[t].l=l; p[t].r=r; if(l==r-1) { p[t].s…

poj3468 A Simple Problem with Integers 题意:O(-1) 思路:O(-1) 线段树功能:update:成段增减 query:区间求和 Sample Input 10 5 1 2 3 4 5 6 7 8 9 10 Q 4 4 Q 1 10 Q 2 4 C 3 6 3 Q 2 4 Sample Output 4 55 9 15 Hint The sums may exceed the range of 32-bit integers. 题目大意:   N个数 M…

转载请注明出处:http://blog.csdn.net/u012860063 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 th…