25 lines
523 B
C++
25 lines
523 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][N];//第一维：前i个物品，第二维：体积j及以下
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int main() {
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cin >> n >> m;
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//初始化
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for (int i = 0; i <= m; i++) f[0][i] = 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 = 0; j <= m; j++) {
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f[i][j] = f[i - 1][j];
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if (j >= v) f[i][j] += f[i - 1][j - v];
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}
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}
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cout << f[n][m] << endl;
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return 0;
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}
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