Submission #1228938

#	Time	Username	Problem	Language	Result	Execution time	Memory
1228938		kiennguyendinh	Bank (IZhO14_bank)	C++20	19 / 100	63 ms	7488 KiB

bank

#include <bits/stdc++.h>
using namespace std;
int n,m;
int a[20];
int b[20];
bool c[20][1 << 20];
vector<int> v[20001];
int M;
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);cout.tie(0);
    cin >> n >> m;
    M = 1 << m;
    for(int i = 0;i < n;i++) cin >> a[i];
    for(int j = 0;j < m;j++) cin >> b[j];
    for(int mask = 0;mask < M;mask++){
        int sum = 0;
        for(int i = 0;i < m;i++) if((mask >> i)&1) sum += b[i];
        v[sum].push_back(mask);
    }
    //van de, cap nhat cho cac supperMask
    for(int i = 0;i < n;i++){
        for(int elm : v[a[i]]){
            if(!i){
                for(int preMask = elm;preMask < M;preMask = (preMask + 1) | preMask){
                    c[i][preMask] = true;
                }
            }else{
                for(int preMask = elm;preMask < M;preMask = (preMask + 1) | preMask){
                    c[i][preMask] |= c[i - 1][preMask ^ elm];
                }
            }
        }
    }
    for(int mask = 0;mask < M;mask++){
        if(c[n - 1][mask]){
            cout << "YES";
            return 0;
        }
    }
    cout << "NO";
    return 0;
}

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