A Simple Problem with Integers [题目链接]A Simple Problem with Integers [题目类型]线段树 成段增减+区间求和 &题解: 线段树 成段增减+区间求和 模板题 这种题真的应该理解并且可以流畅的独立码出来了 [时间复杂度]\(O(nlogn)\) &代码: #include <iostream> #include <cstdio> #include <cstring> using namespa…

A Simple Problem with Integers Time Limit:5000MS   Memory Limit:131072K Case Time Limit:2000MS 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…

解题报告 题意: 略 思路: 线段树成段更新,区间求和. #include <iostream> #include <cstring> #include <cstdio> #define LL long long #define int_now int l,int r,int root using namespace std; LL sum[500000],lazy[500000]; void push_up(int root,int l,int r) { sum[ro…

题目链接:http://poj.org/problem?id=3468 题意就是给你一组数据,成段累加,成段查询. 很久之前做的,复习了一下成段更新,就是在单点更新基础上多了一个懒惰标记变量.updata的时候刚好在(l==T[p].l && r==T[p].r)的时候不更新下去,暂时用一个懒惰变量存了起来(所以才懒惰),不然继续更新下去复杂度会很高.在query的时候更新到下一层(看代码,多打打就有体会了). #include <iostream> #include <…

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…

A Simple Problem with Integers Time Limit: 5000MS   Memory Limit: 131072K Total Submissions: 92127   Accepted: 28671 Case Time Limit: 2000MS 描述 You have N integers, A1, A2, ... , AN. You need to deal with two kinds of operations. One type of operatio…

题目传送门 A Simple Problem with Integers Time Limit: 5000MS   Memory Limit: 131072K Total Submissions: 142198   Accepted: 44136 Case Time Limit: 2000MS Description You have N integers, A1, A2, ... , AN. You need to deal with two kinds of operations. One…

A Simple Problem with Integers Time Limit: 5000MS   Memory Limit: 131072K Total Submissions: 83822   Accepted: 25942 Case Time Limit: 2000MS Description You have N integers, A1, A2, ... , AN. You need to deal with two kinds of operations. One type of…

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…

题目链接:https://vjudge.net/problem/POJ-3468 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 nu…