#include <bits/stdc++.h>
using namespace std;
vector < long long > vr1;
long long a[44];
long long ans,n,k;
void cnt1(long long zr,long long sm)
{
if(zr==(n/2+1))
{
vr1.push_back(sm);
return;
}
cnt1(zr+1,sm+a[zr]);
cnt1(zr+1,sm);
}
void cnt2(long long zr,long long sum)
{
if(zr==n+1)
{
ans+=(upper_bound(vr1.begin(),vr1.end(),k-sum)-vr1.begin());
return;
}
cnt2(zr+1,sum+a[zr]);
cnt2(zr+1,sum);
}
int main()
{
cin.tie(0);
ios_base::sync_with_stdio(0);
cin>>n>>k;
for(long long i=1;i<=n;i++)
{
cin>>a[i];
}
cnt1(1,0);
sort(vr1.begin(),vr1.end());
cnt2(n/2+1,0);
cout<<ans<<"\n";
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
600 KB |
Output is correct |
2 |
Correct |
0 ms |
456 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
456 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
456 KB |
Output is correct |
3 |
Correct |
1 ms |
460 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
344 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
344 KB |
Output is correct |
4 |
Correct |
1 ms |
348 KB |
Output is correct |
5 |
Correct |
1 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
348 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
18 ms |
992 KB |
Output is correct |
2 |
Correct |
62 ms |
2520 KB |
Output is correct |
3 |
Correct |
274 ms |
9424 KB |
Output is correct |
4 |
Correct |
58 ms |
2516 KB |
Output is correct |
5 |
Correct |
5 ms |
988 KB |
Output is correct |
6 |
Correct |
4 ms |
856 KB |
Output is correct |
7 |
Correct |
7 ms |
1100 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
25 ms |
1500 KB |
Output is correct |
2 |
Correct |
18 ms |
1104 KB |
Output is correct |
3 |
Correct |
112 ms |
4624 KB |
Output is correct |
4 |
Correct |
0 ms |
344 KB |
Output is correct |
5 |
Correct |
2 ms |
736 KB |
Output is correct |
6 |
Correct |
6 ms |
1096 KB |
Output is correct |
7 |
Correct |
5 ms |
992 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
47 ms |
1496 KB |
Output is correct |
2 |
Correct |
100 ms |
2520 KB |
Output is correct |
3 |
Correct |
102 ms |
2516 KB |
Output is correct |
4 |
Correct |
1 ms |
348 KB |
Output is correct |
5 |
Correct |
24 ms |
2520 KB |
Output is correct |
6 |
Correct |
94 ms |
9168 KB |
Output is correct |
7 |
Correct |
27 ms |
2516 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
204 ms |
5332 KB |
Output is correct |
2 |
Correct |
17 ms |
992 KB |
Output is correct |
3 |
Correct |
6 ms |
736 KB |
Output is correct |
4 |
Correct |
1 ms |
348 KB |
Output is correct |
5 |
Correct |
3 ms |
824 KB |
Output is correct |
6 |
Correct |
66 ms |
5328 KB |
Output is correct |
7 |
Correct |
6 ms |
992 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
19 ms |
992 KB |
Output is correct |
2 |
Correct |
58 ms |
2520 KB |
Output is correct |
3 |
Correct |
5 ms |
736 KB |
Output is correct |
4 |
Correct |
5 ms |
736 KB |
Output is correct |
5 |
Correct |
31 ms |
2520 KB |
Output is correct |
6 |
Correct |
7 ms |
992 KB |
Output is correct |
7 |
Correct |
104 ms |
8940 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
242 ms |
10700 KB |
Output is correct |
2 |
Correct |
20 ms |
992 KB |
Output is correct |
3 |
Correct |
6 ms |
736 KB |
Output is correct |
4 |
Correct |
289 ms |
9420 KB |
Output is correct |
5 |
Correct |
42 ms |
5332 KB |
Output is correct |
6 |
Correct |
6 ms |
988 KB |
Output is correct |
7 |
Correct |
11 ms |
1500 KB |
Output is correct |