[背包问题][第三阶段-初见dp][HDU-2504]Bone Collector
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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 ?
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.
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
import java.util.Scanner;public class Main {public static void main(String[] args) {// TODO Auto-generated method stubScanner in = new Scanner(System.in);int T = in.nextInt();while(T>0){int N = in.nextInt();int V = in.nextInt();int[] value = new int[N+1];int[] volume = new int[N+1];int[][] sum = new int[N+10][V+10];int i,j;for(i=1;i<N+1;i++)value[i]=in.nextInt();for(i=1;i<N+1;i++)volume[i]=in.nextInt(); for(j=0;j<=V;j++) for(i=1;i<=N;i++){ if(j<volume[i]){ sum[i][j]=sum[i-1][j]; continue; }else if(sum[i-1][j-volume[i]]+value[i]>sum[i-1][j]) sum[i][j]=sum[i-1][j-volume[i]]+value[i]; else sum[i][j]=sum[i-1][j]; }System.out.println(sum[N][V]);T--;}}}
一定要从0开始检索
因为有下面这组变态的数据
1
2 0
20 1
0 1
答案是: 20
0 0
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