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26 lines
572 B
26 lines
572 B
#include <bits/stdc++.h>
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using namespace std;
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const int N = 10010;
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int n, m, f[N];
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int main() {
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// 文件输入
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freopen("2_QiaHaoFill.in", "r", stdin);
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while (cin >> n >> m) {
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memset(f, -0x3f, sizeof(f));
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f[0] = 0;
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for (int i = 1; i <= n; ++i) {
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int v, w;
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cin >> v >> w;
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for (int j = m; j >= v; j--)
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f[j] = max(f[j], f[j - v] + w);
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}
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if (f[m] < 0)
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puts("-1");
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else
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printf("%d\n", f[m]);
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}
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return 0;
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} |