HOJ13907 Diana and the Golden Apples

#include<cstdio>
#include<cstring>
#include<iostream>
#include<algorithm>
#include<queue>
using namespace std;
const int maxn=3e4+10;
const int N=1e3+10;
typedef long long LL;
int wei[N],val[N],dp[maxn];
int main()
{
    freopen("input.txt","r",stdin);
    int l,td,th,n,d;
    scanf("%d%d%d%d%d",&l,&td,&th,&n,&d);
    memset(dp,0,sizeof dp);
    if(td>=th){printf("Diana marries Humperdonkey\n");return 0;}
    int w,x;
    for(int i=0;i<n;i++)
    {
        scanf("%d%d",&w,&x);
        wei[i]=(l-x)*w*d;
        val[i]=w;
    }
    int m=(th-td)*l-1;
    for(int i=0; i<n; i++)
    {
        for(int j=m; j>=wei[i]; j--)
            dp[j] = max(dp[j],dp[j-wei[i]]+val[i]);
    }
    printf("%d\n",dp[m]);
    return 0;
}