이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include<bits/stdc++.h>
using namespace std;
int n, k, arr[44], ans;
void solve(int i, int sum){
if(i == n+1){
if(sum <= k) ans++;
return;
}
solve(i+1, sum);
solve(i+1, sum+arr[i]);
}
int main(){
cin.tie(nullptr)->sync_with_stdio(false);
cin >> n >> k;
for(int i = 1; i<=n; ++i) cin >> arr[i];
solve(1, 0);
cout << ans;
}
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