HDU3033-I love sneakers!

http://acm.hdu.edu.cn/showproblem.php?pid=3033

#include<cstdio>
#include<cstring>
#include<algorithm>
using namespace std;
int brand[124],price[124],value[124],dp[15][100024];
int main(void)
{
   int N,K,M,i,j,k;
   while(scanf("%d%d%d",&N,&M,&K)!=EOF)
   {
       for(i=0;i<N;i++)
          scanf("%d%d%d",&brand[i],&price[i],&value[i]);
       memset(dp,0,sizeof(dp));   
       for(i=1;i<=K;i++)
          for(j=0;j<N;j++)
             for(k=M;k>=price[j];k--)
                if(brand[j]==i)
                {
                    dp[i][k]=max(dp[i][k],dp[i][k-price[j]]+value[j]);
                    dp[i][k]=max(dp[i][k],dp[i-1][k-price[j]]+value[j]);    
                }
       if(dp[K][M]==0) 
          printf("Impossible\n");
       else 
          printf("%d\n",dp[K][M]);       
   }
   return 0;    
}