Submission #1019985

#	Time	Username	Problem	Language	Result	Execution time	Memory
1019985		coolboy19521	Exam (eJOI20_exam)	C++17	0 / 100	1 ms	604 KiB

exam

#include "bits/stdc++.h"
#define int long long

using namespace std;

const int sz = 20;

int a[sz], b[sz];

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

    int n;
    cin >> n;

    for (int i = 1; i <= n; i ++)
        cin >> a[i];

    for (int i = 1; i <= n; i ++)
        cin >> b[i];

    int an = 0;

    for (int i = 0; i < (1ll << n); i ++) {
        int k = 0;
        int c = 0;
        for (int j = 0; j < n; j = k) {
            int tm = 0 < (i & (1ll << j));
            int mx = 0;
            for (; k < n; k ++) {
                int r = 0 < (i & (1ll << k));
                if (r != tm) break;
                mx = max(mx, a[k+1]);
            }
            for (int l = j; l < k; l ++)
                if (b[l+1] == mx) c ++;
        }
        an = max(an, c);
    }

    cout << an << '\n';
}

• Subtask 1: 0 / 14
• Subtask 2: 0 / 12
• Subtask 3: 0 / 13
• Subtask 4: 0 / 23
• Subtask 5: 0 / 16
• Subtask 6: 0 / 22