hdu 2191 悼念512汶川大地震遇难同胞——珍惜现在，感恩生活

来源：互联网发布：unity3d 2d角色朝向编辑：程序博客网时间：2024/05/23 12:13

题目大意:悼念512...

思路:多重背包...不优化也看过,数据弱...

AC Program:

#include<iostream>#include<stdio.h>#include<string.h>using namespace std;int  n,m;int  v;int  p[110],h[110],c[110];int  dp[110];void ZeroOnePack(int  cost,int  weight){  for(int  i=v;i>=cost;i--)     if(dp[i]<dp[i-cost]+weight)         dp[i]=dp[i-cost]+weight;                    }void CompletePack(int  cost,int  weight){  for(int  i=cost;i<=v;i++)     if(dp[i]<dp[i-cost]+weight)         dp[i]=dp[i-cost]+weight;     }void MultiplePack(int  cost,int  weight,int  amount){      if(cost*amount>=v)           CompletePack(cost,weight);       else       {           for(int  k=1;k<amount;)           {             ZeroOnePack(k*cost,k*weight);             amount-=k;             k<<=1;                   }               ZeroOnePack(amount*cost,amount*weight);       }     }int  main(){int  test;scanf("%d",&test);while(test--){    scanf("%d%d",&n,&m);    for(int  i=0;i<m;i++)    {      scanf("%d%d%d",&p[i],&h[i],&c[i]);            }     v=n;    memset(dp,0,sizeof(dp));    for(int  i=0;i<m;i++)       MultiplePack(p[i],h[i],c[i]);     printf("%d\n",dp[v]);        }//system("pause");return 0;}