Submission #1035055

#	Time	Username	Problem	Language	Result	Execution time	Memory
1035055		Khanhcsp2	Bank (IZhO14_bank)	C++14	71 / 100	1031 ms	17344 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[N], b[N], dp[21][1<<20];
vector<int> ms;
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];
    ms.push_back(0);
    dp[0][0]=1;
    for(int id=1;id<=n;id++)
    {
        vector<int> new_mask;
        for(int mask:ms)
        {
            vector<int> bit;
            for(int i=0;i<m;i++) if(!(mask>>i&1)) bit.push_back(i);
            int sz=bit.size();
            for(int i=1;i<(1<<sz);i++)
            {
                int ss=0, sum=0;
                for(int j=0;j<sz;j++) if(i>>j&1) ss+=(1<<bit[j]), sum+=b[bit[j]+1];
                if(sum==a[id]) dp[id][mask|ss]=1, new_mask.push_back(mask|ss);
            }
        }
        sort(all(new_mask));
        new_mask.erase(unique(all(new_mask)), new_mask.end());
        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