hiho 第六周 01背包

 1 #include<iostream>
 2 #include<memory.h>
 3 using namespace std;
 4 #define maxn 505
 5 #define maxm 100005
 6 int need[maxn],value[maxn];
 7 int dp[maxm];
 8 int main()
 9 {
10     int n,m;
11     while(cin>>n>>m)
12     {
13         memset(dp,0,sizeof(dp));
14         for(int i = 1; i <= n; i++)
15             cin>>need[i]>>value[i];
16         for(int j = 0; j <= m; j++)
17             dp[j] = 0;
18         for(int i = 1; i <= n; i++)
19             for(int j = m; j >= need[i]; j--)
20                 dp[j] = max(dp[j],dp[j - need[i]] + value[i]);
21         cout<<dp[m]<<endl;
22     }
23     return 0;
24 }