제출 #1158916

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1158916		vako_p	Passport (JOI23_passport)	C++20	6 / 100	19 ms	4936 KiB

passport

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back
#define debug(x) cerr << '\n' << __LINE__ << ": " << (#x) << " is " << (x) << endl;
//#define cerr if(false) cerr

const int mxN = 1e6 + 5;
ll n,R1[mxN];
pair<ll,ll> a[mxN];

int main(){
	ios::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	cin >> n;
	for(int i = 1; i <= n; i++){
		cin >> a[i].first >> a[i].second;
		R1[i] = max(R1[i - 1], a[i].second);
	}
	ll q;
	cin >> q;
	ll x;
	cin >> x;
	ll res = 0;
	while(x < n){
		if(R1[x] <= x){
			res = -1;
			break;
		}
		x = R1[x];
		res++;
	}
	cout << res << '\n';
}

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