Submission #640628

#	Time	Username	Problem	Language	Result	Execution time	Memory
640628		gnhmhp	Bank (IZhO14_bank)	C++14	19 / 100	86 ms	8532 KiB

bank

#define taskname "bank."
#include <bits/stdc++.h>
#define fastio ios_base::sync_with_stdio(false); cin.tie(nullptr);
using namespace std;

int n, m;
int a[20], b[20], dp[1<<20], c[1<<20];

int main()
{
    fastio;
    cin >> n >> m;
    for (int i=0; i<n; ++i) cin >> a[i];
    for (int i=0; i<m; ++i) cin >> b[i];
    for (int i=1; i<(1<<m); ++i) dp[i]=c[i]=-1;
    for (int mask=1; mask<(1<<m); ++mask)
    {
        for (int i=0; i<m; ++i)
        {
            if (!(mask&(1<<i))) continue;
            int x=mask^(1<<i);
            if (dp[x]==-1) continue;
            c[mask]=c[x]+b[i];
            if (c[mask]==a[dp[x]])
                dp[mask]=dp[x]+1, c[mask]=0;
            else if (c[mask]<a[dp[x]])
                dp[mask]=dp[x];
        }
        if (dp[mask]==n)
        {
            cout << "YES"; return 0;
        }
    }
    cout << "NO";
}

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