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26 lines
500 B

2 years ago
#include <bits/stdc++.h>
using namespace std;
const int N = 110;
const int INF = 0x3f3f3f3f;
int n, m;
int f[N];
int main() {
cin >> n >> m;
memset(f, INF, sizeof f);
f[0] = 0;
for (int i = 1; i <= n; i++) {
int v, w;
cin >> v >> w;
for (int j = m; j >= 0; j--)
f[j] = min(f[j], f[max(0, j - v)] + w);//即使物品体积比j大j - v < 0也能选等价于f[0]
}
cout << f[m] << endl;
return 0;
}