Submission #1100901

#	Time	Username	Problem	Language	Result	Execution time	Memory
1100901		nguyenkhangninh99	Bank (IZhO14_bank)	C++14	100 / 100	73 ms	4540 KiB

bank

#include <bits/stdc++.h>
 
using namespace std;
 
const int maxmask = (1 << 20) + 5, maxn = 22;

int dp[maxmask], a[maxn], b[maxn], pref[maxn];
 void solve(){
    int n, m; cin >> n >> m;

    for (int i = 0; i < n; i++) cin >> a[i];
    for (int i = 0; i < m; i++) cin >> b[i];

    pref[0] = a[0];
    for(int i = 1; i < n; i++) pref[i] = pref[i - 1] + a[i];

    for (int mask = 0; mask < (1 << m); mask++) {
        int sum = 0;
        for (int i = 0; i < m; i++) {
            if (mask & (1 << i)){
                dp[mask] = max(dp[mask], dp[mask ^ (1 << i)]);
                sum += b[i];
            }
        }
        if (sum == pref[dp[mask]]) dp[mask]++;
    }

    if (dp[(1 << m) - 1] < n) cout << "NO\n";
    else cout << "YES\n";
}

signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0); cout.tie(0);
    
    solve();
}

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