hdu oj 2602 Bone Collector（背包）

Bone Collector

Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)

Total Submission(s): 51860    Accepted Submission(s): 21837

Problem Description

Many years ago , in Teddy’s hometown there was a man who was called “Bone Collector”. This man like to collect varies of bones , such as dog’s , cow’s , also he went to the grave …
The bone collector had a big bag with a volume of V ,and along his trip of collecting there are a lot of bones , obviously , different bone has different value and different volume, now given the each bone’s value along his trip , can you calculate out the maximum of the total value the bone collector can get ?

 

Input

The first line contain a integer T , the number of cases.
Followed by T cases , each case three lines , the first line contain two integer N , V, (N <= 1000 , V <= 1000 )representing the number of bones and the volume of his bag. And the second line contain N integers representing the value of each bone. The third line contain N integers representing the volume of each bone.

 

Output

One integer per line representing the maximum of the total value (this number will be less than 2³¹).

 

Sample Input

15 101 2 3 4 55 4 3 2 1

 

Sample Output

14

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放松一下：陈奕迅《你的背包》

AC代码：

#include<string.h>#include<math.h>#include<iostream>using namespace std;int n, v, val[1005];int cost[1005], f[1005];int main(){int t;scanf("%d", &t);while(t--){int i, j;scanf("%d %d", &n, &v);memset(f, 0, sizeof(f));for(i = 1; i <= n; i++)    scanf("%d", &val[i]);for(i = 1; i <= n; i++)    scanf("%d", &cost[i]);for(i = 1; i <= n; i++){for(j = v; j >= cost[i]; j--){f[j] = max(f[j], f[j-cost[i]]+val[i]);}}printf("%d\n", f[v]);}return 0;}

Sample Output

14