Submission #1357455

#	Time	Username	Problem	Language	Result	Execution time	Memory
1357455		gay	Gift Exchange (JOI24_ho_t4)	C++20	50 / 100	2594 ms	1988 KiB

Main

#include <bits/stdc++.h>
#include <experimental/random>
#include <random>

//#include <ext/pb_ds/assoc_container.hpp>
//using namespace __gnu_pbds;

using namespace std;

using ld = long double;
using ll = long long;

const ll INF = 3e18, MOD = 1e9 + 7;

void solve();

signed main() {
#ifdef LOCAL
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#endif
    ios::sync_with_stdio(false);
    cin.tie(0);
    int q = 1;
    //cin >> q;
    while (q--) {
        solve();
    }
}

void solve() {
    ll n; cin >> n;
    vector<ll> a(n);
    for (int i = 0; i < n; i++) {
        cin >> a[i];
    }
    vector<ll> b(n);
    for (int i = 0; i < n; i++) {
        cin >> b[i];
    }
    ll q; cin >> q;
    while (q--) {
        ll l, r; cin >> l >> r;
        l--, r--;
        bool flag = true;
        for (ll i = l; i <= r; i++) {
            bool f = false;
            for (ll j = l; j <= r; j++) {
                if (i == j) continue;
                if ((b[j] >= b[i] && b[j] <= a[i]) || (b[j] <= b[i] && a[j] >= b[i])) {
                    f = true;
                    break;
                }
            }
            if (!f) {
                flag = false;
                break;
            }
        }
        if (flag) {
            cout << "Yes\n";
        } else {
            cout << "No\n";
        }
    }
}

• Subtask 1: 4 / 4
• Subtask 2: 5 / 5
• Subtask 3: 10 / 10
• Subtask 4: 31 / 31
• Subtask 5: 0 / 8
• Subtask 6: 0 / 12
• Subtask 7: 0 / 18
• Subtask 8: 0 / 12