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#include<bits/stdc++.h>
usingnamespacestd;
constintN=110;
constintINF=0x3f3f3f3f;
/*
个数 空间至少5
体积 价值
求: 最小价值
1 5
1 1
---
再来一组数据
个数 空间至少5
体积 价值
求: 最小价值
3 5
1 2
4 9
3 6
答案:10
*/
intn,m;
intf[N][N];
intmain(){
scanf("%d %d",&n,&m);
memset(f,0x3f,sizeoff);
f[0][0]=0;
//这么写是可以选择多个的,也就是完全背包!!!
for(inti=1;i<=n;i++){
intv,w;
scanf("%d %d",&v,&w);
for(intj=0;j<=m;j++)
f[i][j]=min(f[i-1][j],f[i][max(0,j-v)]+w);//即使物品体积比j大,j - v < 0,也能选,等价于f[i - 1][0]