Submission #545560

#	Time	Username	Problem	Language	Result	Execution time	Memory
545560		stark2002	Bank (IZhO14_bank)	C++17	100 / 100	123 ms	8652 KiB

bank

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

const int N = 1005;

int main()
{
    cin.tie(NULL)->sync_with_stdio(false);
    
    int n, m;
    cin >> n >> m;

    vector<int> v(n), a(m);
    
    for(auto& i: v) cin >> i;
    for(auto& i: a) cin >> i;

    vector<int> p(1<<m, -1), l(1<<m, -1);
    p[0] = l[0] = 0;

    for(int i = 1; i < (1<<m); i++)
    {
        for(int j = 0; j < m; j++)
        {
            if((i>>j)&1)
            {
                if(p[i^(1<<j)]==-1) continue;

                int x = i^(1<<j), num = p[x];

                if(l[x]+a[j]==v[num])
                {
                    p[i] = p[x] + 1;
                    l[i] = 0; 
                    break;
                }
                else if(l[x]+a[j] < v[num])
                {
                    p[i] = p[x];
                    l[i] = l[x]+a[j];
                }
                
            }
        }

        if(p[i]==n)
        {
            cout << "YES\n";
            break;
        }
        else if(i==(1<<m)-1)
        {
            cout << "NO\n";
        }
    }

    return 0;
}

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