Submission #895816

#	Time	Username	Problem	Language	Result	Execution time	Memory
895816		tvladm2009	Exam (eJOI20_exam)	C++17	0 / 100	3 ms	592 KiB

exam

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    int n;
    cin >> n;
    vector<int> a(n + 1), b(n + 1);
    for (int i = 1; i <= n; ++i) {
        cin >> a[i];
    }
    for (int i = 1; i <= n; ++i) {
        cin >> b[i];
    }
    map<int, int> mp;
    int ans = 0;
    for (int i = n; i >= 1; --i) {
        ++mp[a[i]];
        if (mp[b[i]] != 0) ++ans;
    }
    cout << ans << 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