Sum It Up Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 2982    Accepted Submission(s): 1493 Problem Description Given a specified total t and a list of n integers, find all distinct sums usin…

题目大意: 给你一个总和(total)和一列(list)整数,共n个整数,要求用这些整数相加,使相加的结果等于total,找出所有不相同的拼凑方法. 例如,total = 4,n = 6,list = [4,3,2,2,1,1]. 有四种不同的方法使得它们相加的结果等于total(即等于4),分别为:4,3+1,2+2, 2+1+1. 在同一种拼凑方式中,每个数字不能被重复使用,但是在list中可能存在许多相等的数字. 输入: 输入包含许多测试用例,每个用例仅占一行.每个用例包含t(total)…

传送门: http://acm.hdu.edu.cn/showproblem.php?pid=1258 Sum It Up Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 7758    Accepted Submission(s): 4067 Problem Description Given a specified total t a…

pid=1258">Sum It Up Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 3953    Accepted Submission(s): 2032 Problem Description Given a specified total t and a list of n integers, find all dist…

题目链接:http://poj.org/problem?id=1564 题目大意:给定一个整数t,和n个元素组成的集合.求能否用该集合中的元素和表示该整数,如果可以输出所有可行解.1<=n<=12 Sample Input 4 6 4 3 2 2 1 1 5 3 2 1 1 400 12 50 50 50 50 50 50 25 25 25 25 25 25 0 0 Sample Output Sums of 4: 4 3+1 2+2 2+1+1 Sums of 5: NONE Sums of…

Sum It Up Time Limit:1000MS     Memory Limit:32768KB     64bit IO Format:%I64d & %I64u Submit Status Description Given a specified total t and a list of n integers, find all distinct sums using numbers from the list that add up to t. For example, if…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1024 题意:----最大M子段和问题给定由 n个整数(可能为负整数)组成的序列a1,a2,a3,……,an,以及一个正整数 m,要求确定序列 a1,a2,a3,……,an的 m个不相交子段,使这m个子段的总和达到最大,求出最大和. 思路:DP 用a数组表用示数据,dp[i][j]表示将前j个数划分成i个子段的和的最大值(a[j]包含在最后一个段中). 则有状态转移方程:dp[i][j]=max(dp…

Sum It Up Problem Description Given a specified total t and a list of n integers, find all distinct sums using numbers from the list that add up to t. For example, if t=4, n=6, and the list is [4,3,2,2,1,1], then there are four different sums that eq…

题目链接:http://poj.org/problem?id=1564 给出m个数,求出和为n的组合方式:并按从大到小的顺序输出: 简单的dfs但是看了代码才会: #include <cstdio> #include <cstring> #include <iostream> #include <algorithm> using namespace std; int n, m, flag; ], b[]; int cmp(int a, int b) { re…

C. Given Length and Sum of Digits... time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output You have a positive integer m and a non-negative integer s. Your task is to find the smallest and the la…