21 lines
418 B
C++
21 lines
418 B
C++
#include <bits/stdc++.h>
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using namespace std;
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const int N = 110;
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int n, m;
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int f[N];
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int main() {
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cin >> n >> m;
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f[0] = 1;
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for (int i = 1; i <= n; i++) {
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int v;
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cin >> v;
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for (int j = m; j >= 0; j--)//即使物品体积比j大，j - v < 0，也能选，等价于f[0]
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f[j] = f[j] + f[max(0, j - v)];
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}
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cout << f[m] << endl;
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return 0;
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}
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