Submission #386522

#	Time	Username	Problem	Language	Result	Execution time	Memory
386522		ScarletS	Bank (IZhO14_bank)	C++17	19 / 100	66 ms	492 KiB

bank

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

vector<int> v[21];

int main()
{
    ios_base::sync_with_stdio(0); cin.tie(0);
    int n,m,s,l,r,mid;
    cin>>n>>m;
    int p[n+1],a[m];
    p[0]=0;
    v[0].push_back(0);
    for (int i=1;i<=n;++i)
        cin>>p[i],p[i]+=p[i-1];
    for (int i=0;i<m;++i)
        cin>>a[i];
    for (int i=1;i<(1<<m);++i)
    {
        s=0;
        for (int j=0;j<m;++j)
            if (i&(1<<j))
                s+=a[j];
        l=1;r=n;
        while (l<r)
        {
            mid=l+(r-l)/2;
            if (s<p[mid])
                l=mid+1;
            else
                r=mid;
        }
        if (s!=p[l])
            continue;
        for (int j : v[l-1])
            if ((i&j)==j)
            {
                v[l].push_back(i);
                break;
            }
    }
    if (v[n].empty())
        cout<<"NO";
    else
        cout<<"YES";
    return 0;
}

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