Submission #669099

#	Time	Username	Problem	Language	Result	Execution time	Memory
669099		amin	Bank (IZhO14_bank)	C++14	0 / 100	5 ms	596 KiB

bank

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


int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
long n,m;
cin>>n>>m;
map<long ,long>ma;
long a[n];
long b[n];
long ans[1<<m];
vector<long>v;
long sum=0;
for(long i=0;i<n;i++)
{
    cin>>a[i];
    sum+=a[i];
    v.push_back(sum);
}
for(long i=0;i<m;i++)
{
    cin>>b[i];
}
for(long i=0;i<(1<<m);i++)
{
    ans[i]=-1;
}
ans[0]=1;
long o=0;
long p=0;
for(long i=1;i<(1<<m);i++)
{
    o=0;
    p=0;
       for(long y=0;y<m;y++)
    {
        if(i&(1<<y))
        {
           o+=b[y];

        }
    }
 //   cout<<i<<' ';
    for(long y=0;y<m;y++)
    {
        if(i&(1<<y))
        {
            long u=i-(1<<y);
            p=o-b[y];
            if(ans[u]==-1)
            {
                continue;
            }
            if(upper_bound(v.begin(),v.end(),o)==upper_bound(v.begin(),v.end(),p))
            {
                ans[i]=1;
                break;
            }
            if(lower_bound(v.begin(),v.end(),o)!=upper_bound(v.begin(),v.end(),o)&&lower_bound(v.begin(),v.end(),o)==upper_bound(v.begin(),v.end(),p))
            {
                ans[i]=1;
                break;
            }

        }
    }
 //   cout<<o<<' '<<ans[i]<<endl;
   ma[o]=max(ma[o],ans[i]);
}
if(ma[sum]==1)
{
    cout<<"YES"<<endl;
}else
cout<<"NO"<<endl;

}

• Subtask 1: 0 / 19
• Subtask 2: 0 / 25
• Subtask 3: 0 / 27
• Subtask 4: 0 / 29