hdu 2602 Bone Collector

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 ?

重量可以为0

#include <cstdio>
#include <cstring>
#include <algorithm>
#include <iostream>

using namespace std;

typedef long long ll;
const int N=1000+5;

ll w[N];
ll v[N];
ll dp[N][N];

int main(){

    int n;
    scanf("%d",&n);

    while(n--)
    {
        int a,b;
        scanf("%d %d",&a,&b);

        for(int i=1;i<=a;i++)
        {
            scanf("%lld",&v[i]);
        }
        for(int i=1;i<=a;i++)
        {
            scanf("%lld",&w[i]);
        }

        memset(dp,0,sizeof(dp));

        for(int i=1;i<=a;i++)
        {
            for(int j=0;j<=b;j++)
            {
                if(j<w[i])
                {
                    dp[i][j]=dp[i-1][j];
                }
                else
                {
                    dp[i][j]=max(dp[i-1][j],dp[i-1][j-w[i]]+v[i]);
                }
            }
        }
        printf("%lld\n",dp[a][b]);


    }

    return 0;
}

#include <cstdio>
#include <cstring>
#include <algorithm>
#include <iostream>

using namespace std;

typedef long long ll;
const int N=1000+5;

ll w[N];
ll v[N];
ll dp[N];

int main(){

    int n;
    scanf("%d",&n);

    while(n--)
    {
        int a,b;
        scanf("%d %d",&a,&b);

        for(int i=1;i<=a;i++)
        {
            scanf("%lld",&v[i]);
        }
        for(int i=1;i<=a;i++)
        {
            scanf("%lld",&w[i]);
        }

        memset(dp,0,sizeof(dp));

        for(int i=1;i<=a;i++)
        {
            for(int j=b;j>=w[i];j--)
            {
               dp[j]=max(dp[j],dp[j-w[i]]+v[i]);
            }
        }
        printf("%lld\n",dp[b]);


    }

    return 0;
}