Accepted Necklace Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 3136 Accepted Submission(s): 1213 Problem Description I have N precious stones, and plan to use K of them to make a necklace for m…

题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=2660 Accepted Necklace Description I have N precious stones, and plan to use K of them to make a necklace for my mother, but she won't accept a necklace which is too heavy. Given the value and the weight…

HDOJ(HDU).2660 Accepted Necklace (DFS) 点我挑战题目 题意分析 给出一些石头,这些石头都有自身的价值和重量.现在要求从这些石头中选K个石头,求出重量不超过W的这些石头的最大价值是多少? 类似于之前讨论到的数字选不选的问题,此处面临的情况是石头选不选,若选进行一个dfs,若不选择进行另外一个dfs.考虑递归边界: 1.当选够了K个的时候,终止递归: 2.当当前重量大于W的时候,终止递归: 3.当所选石头的下标(代码中的pos)超过石头数量的时候,终止递归: 若…

Accepted Necklace Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2474    Accepted Submission(s): 973 Problem Description I have N precious stones, and plan to use K of them to make a necklace f…

Problem Description I have N precious stones, and plan to use K of them to make a necklace for my mother, but she won't accept a necklace which is too heavy. Given the value and the weight of each precious stone, please help me find out the most valu…

Problem Description I have N precious stones, and plan to use K of them to make a necklace for my mother, but she won't accept a necklace which is too heavy. Given the value and the weight of each precious stone, please help me find out the most valu…

http://acm.hdu.edu.cn/showproblem.php?pid=2660 f[v][u]=max(f[v][u],f[v-1][u-w[i]]+v[i]; 注意中间一层必须逆序循环. #include <cstdio> #include <cstring> #include <algorithm> using namespace std; ][]; ],w[]; int main() { //freopen("a.txt",&qu…

杭电ACM分类: 1001 整数求和 水题1002 C语言实验题——两个数比较 水题1003 1.2.3.4.5... 简单题1004 渊子赛马 排序+贪心的方法归并1005 Hero In Maze 广度搜索1006 Redraiment猜想 数论:容斥定理1007 童年生活二三事 递推题1008 University 简单hash1009 目标柏林 简单模拟题1010 Rails 模拟题(堆栈)1011 Box of Bricks 简单题1012 IMMEDIATE DECODABILITY…

转载:from http://blog.csdn.net/qq_28236309/article/details/47818349 基础题:1000.1001.1004.1005.1008.1012.1013.1014.1017.1019.1021.1028.1029. 1032.1037.1040.1048.1056.1058.1061.1070.1076.1089.1090.1091.1092.1093. 1094.1095.1096.1097.1098.1106.1108.1157.116…

Shell Necklace Time Limit: 16000/8000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 534    Accepted Submission(s): 227 Problem Description Perhaps the sea‘s definition of a shell is the pearl. However, in my view,…