Submission #800973

#	Time	Username	Problem	Language	Result	Execution time	Memory
800973		12345678	Bank (IZhO14_bank)	C++17	100 / 100	119 ms	8552 KiB

bank

#include <bits/stdc++.h>

using namespace std;

int n, m;

int main()
{
    cin.tie(NULL)->sync_with_stdio(false);
    cin>>n>>m;
    vector<int> a(n), b(m);
    for (auto &x:a) cin>>x;
    for (auto &x:b) cin>>x;
    vector<int> dp(1<<m, -1), l(1<<m, 0);
    dp[0]=0;
    for (int i=1; i<(1<<m); i++)
    {
        for (int j=0; j<m; j++)
        {
            if ((i&(1<<j))==0) continue;
            if (dp[i-(1<<j)]==-1) continue;
            if (l[i-(1<<j)]+b[j]==a[dp[i-(1<<j)]]) dp[i]=dp[i-(1<<j)]+1, l[i]=0;
            else if (l[i-(1<<j)]+b[j]<a[dp[i-(1<<j)]]) dp[i]=dp[i-(1<<j)], l[i]=l[i-(1<<j)]+b[j];
        }
        if (dp[i]==n)
        {
            cout<<"YES";
            return 0;
        }
    }
    cout<<"NO";
}

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