Submission #991017

#	Time	Username	Problem	Language	Result	Execution time	Memory
991017		Pacybwoah	Passport (JOI23_passport)	C++17	6 / 100	22 ms	5220 KiB

passport

#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx,avx2,bmi,bmi2")
#include<iostream>
#include<vector>
#include<utility>
#include<map>
using namespace std;
int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    int n;
    cin >> n;
    vector<pair<int, int>> vec(n + 1);
    for(int i = 1; i <= n; i++) cin >> vec[i].first >> vec[i].second;
    int q;
    cin >> q;
    vector<int> maxi(n + 1);
    for(int i = 1; i <= n; i++) maxi[i] = max(maxi[i - 1], vec[i].second);
    while(q--){
        int a;
        cin >> a;
        int r = vec[1].second, ans = 1;
        while(r < n && ans <= n + 1){
            r = maxi[r];
            ans++;
        }
        if(ans == n + 2) cout << "-1\n";
        else cout << ans << "\n";
    }
}
// g++ -std=gnu++20 pC.cpp -o run -Wall -Wextra -fsanitize=undefined -fsanitize=address

• Subtask 1: 6 / 6
• Subtask 2: 0 / 16
• Subtask 3: 0 / 24
• Subtask 4: 0 / 8
• Subtask 5: 0 / 46