限制重量求最小价值的完全背包 HDU1114

 1 #include <iostream>
 2 #include <cstring>
 3 
 4 using namespace std;
 5 
 6 int v[510];
 7 int w[510];
 8 int dp[10010];
 9 
10 int main()
11 {
12     int t;
13     cin>>t;
14     while(t--)
15     {
16         int a,b;
17         cin>>a>>b;
18         int n;
19         cin>>n;
20         for(int i=0;i<n;i++)
21         {
22             cin>>v[i]>>w[i];
23         }
24         for(int i=1;i<=b-a;i++)
25             dp[i]=99999999;
26         dp[0]=0;
27         for(int i=0;i<n;i++)
28         {
29             for(int j=w[i];j<=b-a;j++)
30             {
31                 dp[j]=min(dp[j],dp[j-w[i]]+v[i]);
32             }
33         }
34         if(dp[b-a]>=99999999)
35             cout<<"This is impossible."<<endl;
36         else
37             cout<<"The minimum amount of money in the piggy-bank is "<<dp[b-a]<<"."<<endl;
38     }
39     return 0;
40 }