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40 lines
646 B
40 lines
646 B
#include <bits/stdc++.h>
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using namespace std;
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const int N = 1010;
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int n, m;
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int v[N], w[N];
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int f[N];
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/*
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55 3
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21 9
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20 2
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30 21
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答案：
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30
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*/
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int main() {
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cin >> m >> n;
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// ①
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for (int i = 1; i <= n; i++) cin >> w[i] >> v[i];
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for (int i = 1; i <= n; i++)
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for (int j = m; j >= w[i]; j--)
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f[j] = max(f[j], f[j - w[i]] + v[i]);
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// // ②
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// for (int i = 1; i <= n; i++) {
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// int w, v;
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// cin >> w >> v;
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// for (int j = m; j >= w; j--)
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// f[j] = max(f[j], f[j - w] + v);
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// }
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printf("%d\n", f[m]);
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return 0;
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}
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