Submission #1035047

#	Time	Username	Problem	Language	Result	Execution time	Memory
1035047		Khanhcsp2	Bank (IZhO14_bank)	C++17	71 / 100	996 ms	262144 KiB

bank

#include<bits/stdc++.h>
#define el '\n'
#define fi first
#define sc second
//#define int ll
#define pii pair<int, int>
#define all(v) v.begin(), v.end()
using namespace std;
using ll=long long;
using ull=unsigned long long;
using ld=long double;
const int mod=1e9+7;
const int N=1e5+11;
int n, m, a[21], b[21], dp[21][1<<20];
vector<int> ms, ss[21];
void sol()
{
    cin >> n >> m;
    for(int i=1;i<=n;i++) cin >> a[i];
    for(int i=1;i<=m;i++) cin >> b[i];
    for(int i=1;i<=n;i++)
    {
        for(int mask=1;mask<(1<<m);mask++)
        {
            int sum=0;
            for(int j=0;j<m;j++) if(mask>>j&1) sum+=b[j+1];
            if(sum==a[i]) ss[i].push_back(mask);
        }
    }
    ms.push_back(0);
    dp[0][0]=1;
    for(int id=1;id<=n;id++)
    {
        vector<int> new_mask;
        for(int mask:ms)
        {
            for(int vl:ss[id])
            {
                if((vl&mask)==0) dp[id][mask|vl]=1, new_mask.push_back(mask|vl);
            }
        }
        ms=new_mask;
    }
    int ch=0;
    for(int i=0;i<(1<<m);i++) if(dp[n][i]) ch=1;
    if(ch==1) cout << "YES";
    else cout << "NO";
}
signed main()
{
//    freopen("divisor.INP", "r", stdin);
//    freopen("divisor.OUT", "w", stdout);
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int t=1;
    //cin >> t;
    while(t--)
    {
        sol();
    }
}

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