Submission #996801

#	Time	Username	Problem	Language	Result	Execution time	Memory
996801		coolboy19521	Bank (IZhO14_bank)	C++17	100 / 100	70 ms	8596 KiB

bank

#include<bits/stdc++.h>

#define int long long

using namespace std;

const int sm = 20;

int a[sm], b[sm];
int dp[(1ll << sm)];

signed main() {
    cin.tie(nullptr)->sync_with_stdio(false);

    int n, m;
    cin >> n >> m;

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

    for (int i = 1; i < n; i ++) {
        a[i] += a[i - 1];
    }

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

    for (int i = 0; i < (1ll << m); i ++) {
        int mx = -1, sm = 0;

        for (int j = 0; j < m; j ++) {
            if (i & (1ll << j)) {
                mx = max(mx, dp[i ^ (1ll << j)]);
                sm += b[j];
            }
        }

        dp[i] = mx + (sm == a[mx + 1]);

        if (n - 1 == dp[i]) {
            cout << "YES";
            return 0;
        }
    }

    cout << "NO";
}

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