题目链接: http://acm.hdu.edu.cn/showproblem.php?pid=1003 题目意思: 即给出一串数据,求连续的子序列的最大和 解题思路: 因为我们很容易想到用一个max来存放找到的子序列的和中的最大值,通过不断比较,对max的值进行更新,最后我们就能够得到最大子序列的和,于是很容易想到用暴力搜索,见上一篇博客,这样的时间复杂度为O(n^3),是超时的. 又因为想到只要一个数不是负数,不管它再小,加上去也是会使和变大的,所以我们需要用另一个变量来判断即将要加上的一个…

这一题目是要求连续子序列的最大和,所以在看到题目的一瞬间就想到的是把所有情况列举出来,再两个两个的比较,取最大的(即为更新最大值的意思),这样的思路很简单,但是会超时,时间复杂度为O(n^3),因为有三重for语句 #include<stdio.h> #define maxn 101000 int main() { int ncase,flag=1,n,max,sum=0,h,z,a[maxn]; long i,j,k; scanf("%d",&ncase); wh…

参考:https://www.cnblogs.com/yexiaozi/p/5749338.html #include <iostream> #include <cstdio> #include <cstring> using namespace std; ; int a[N],dp[N]; int n; void test() { cout<<"\n---------\n"; ;i<=n;i++) { cout<<'[…

HDU 1024 题目大意:给定m和n以及n个数,求n个数的m个连续子系列的最大值,要求子序列不想交. 解题思路:<1>动态规划,定义状态dp[i][j]表示序列前j个数的i段子序列的值,其中第i个子序列包括a[j], 则max(dp[m][k]),m<=k<=n 即为所求的结果 <2>初始状态: dp[i][0] = 0, dp[0][j] = 0; <3>状态转移: 决策:a[j]自己成为一个子段,还是接在前面一个子段的后面 方程: a[j]直接接在前面…

转载请注明出处,谢谢:http://www.cnblogs.com/KirisameMarisa/p/4302208.html   ---by 墨染之樱花 dp是竞赛中常见的问题,也是我的弱项orz,更要多加练习.看到邝巨巨的dp专题练习第一道是Max Sum Plus Plus,所以我顺便把之前做过的hdu1003 Max Sum拿出来又做了一遍 HDU 1003 Max Sum 题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1003 题目描述:…

HDU 1024 Max Sum Plus Plus (动态规划) Description Now I think you have got an AC in Ignatius.L's "Max Sum" problem. To be a brave ACMer, we always challenge ourselves to more difficult problems. Now you are faced with a more difficult problem. Given…

传送门:http://acm.hdu.edu.cn/showproblem.php?pid=1024 Max Sum Plus Plus Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 35988    Accepted Submission(s): 12807 Problem Description Now I think you ha…

A - Max Sum Plus Plus Time Limit:1000MS     Memory Limit:32768KB     64bit IO Format:%I64d & %I64u Submit Status Practice HDU 1024 Appoint description: Description Now I think you have got an AC in Ignatius.L's "Max Sum" problem. To be a bra…

题目地址:http://acm.hdu.edu.cn/showproblem.php?pid=1024 Problem Description Now I think you have got an AC in Ignatius.L's "Max Sum" problem. To be a brave ACMer, we always challenge ourselves to more difficult problems. Now you are faced with a mor…

Max Sum Plus Plus Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 29942    Accepted Submission(s): 10516 Problem Description Now I think you have got an AC in Ignatius.L's "Max Sum" problem…