Submission #1223402

#	Time	Username	Problem	Language	Result	Execution time	Memory
1223402		Aisha	Exam (eJOI20_exam)	C++20	0 / 100	1099 ms	196560 KiB

exam

#include "bits/stdc++.h"

using namespace std;

#define int long long

signed main() {
    int n;
    cin >> n;

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

    vector <vector <int>> dp(n, vector <int> (n));
    for (int l = n - 1; l >= 0; l --) {
        for (int r = l; r < n; r ++) {
            map <int, int> mp; int mx = 0;
            for (int i = l; i <= r; i ++) {
                mp[b[i]] ++;
                mx = max(mx, a[i]);
              //  cout << l << ' ' << r << endl; 
               // if (l == 1 && r == 3) cout << i << ' ' << mx << ' ' << mp[mx] << endl;
                dp[l][r] = max(dp[l][r], mp[mx] + (i + 1 == n ? 0 : dp[i + 1][r]));
            }
        }
    }

    cout << dp[0][n - 1] << endl;

    return 0;
}

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