Submission #941831

#	Time	Username	Problem	Language	Result	Execution time	Memory
941831		maxFedorchuk	Ice Hockey World Championship (CEOI15_bobek)	C++17	40 / 100	1099 ms	456 KiB

bobek

#include <bits/stdc++.h>
using namespace std;

const long long MX=44;
long long pr[MX],st2[MX],a[MX];

long long cnt(long long n,long long k)
{
    if(n==0 || k<a[1])
    {
        return 1;
    }

    if(pr[n]<=k)
    {
        return st2[n];
    }

    long long o=0;
    if(a[n]<=k)
    {
        o=cnt(n-1,k-a[n]);
    }

    return (o+cnt(n-1,k));
}

int main()
{
    cin.tie(0);
    ios_base::sync_with_stdio(0);

    long long n,k;
    cin>>n>>k;

    for(long long i=1;i<=n;i++)
    {
        cin>>a[i];
    }

    sort(a+1,a+1+n);

    st2[0]=1;
    for(long long i=1;i<=n;i++)
    {
        pr[i]=pr[i-1]+a[i];
        st2[i]=(st2[i-1]*2);
    }

    cout<<cnt(n,k)<<"\n";
    return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 0 / 10
• Subtask 6: 0 / 10
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10