19 lines
401 B
C++
19 lines
401 B
C++
|
#include <bits/stdc++.h>
|
||
|
|
using namespace std;
|
||
|
|
typedef long long LL;
|
||
|
|
const int N = 1e4 + 10;
|
||
|
|
LL f[N];
|
||
|
|
int w[N];
|
||
|
|
int main() {
|
||
|
|
int m, n;
|
||
|
|
scanf("%d%d", &n, &m);
|
||
|
|
f[0] = 1;
|
||
|
|
for (int i = 1; i <= n; i++) scanf("%d", &w[i]);
|
||
|
|
|
||
|
|
for (int i = 1; i <= n; i++)
|
||
|
|
for (int j = w[i]; j <= m; j++)
|
||
|
|
f[j] += f[j - w[i]];
|
||
|
|
printf("%lld\n", f[m]);
|
||
|
|
return 0;
|
||
|
|
}
|