Submission #1011569

#	Time	Username	Problem	Language	Result	Execution time	Memory
1011569		victor_gao	Gift Exchange (JOI24_ho_t4)	C++17	0 / 100	2542 ms	7884 KiB

Main

//#pragma GCC optimize("Ofast,unroll-loops,O3")
//#pragma GCC target("avx,avx2,sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,fma,tune=native")
#include <bits/stdc++.h>
#define int long long
#define pii pair<int, int>
#define x first
#define y second
#define N 500015
using namespace std;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int n, q, mn[N];
pii arr[N];
signed main(){
    ios::sync_with_stdio(0);
    cin.tie(0);
    cin >> n;
    for (int i = 1; i <= n; i++)
        cin >> arr[i].x;
    for (int i = 1; i <= n; i++)
        cin >> arr[i].y;
    cin >> q;
    for (int t = 0; t < q; t++){
        int l, r; cin >> l >> r;
        vector<pii> vt;
        for (int i = l; i <= r; i++)
            vt.push_back(arr[i]);
        sort(vt.begin(), vt.end());
        mn[vt.size()] = mn[(int)vt.size() - 1] = 1e9;
        for (int i = (int)vt.size() - 2; i >= 0; i--)
            mn[i] = min(vt[i + 1].y, mn[i + 1]);
        int ans = 1, group = 0;
        for (int i = 0; i < (int)vt.size() - 1; i++){
            group++;
            if (vt[i].x < mn[i]){
                if (group == 1)
                    ans = 0;
                group = 0;
            }
        }
        cout << (ans ? "Yes\n" : "No\n");
    }
}

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