Submission #1131793

#	Time	Username	Problem	Language	Result	Execution time	Memory
1131793		lopkus	Advertisement 2 (JOI23_ho_t2)	C++20	59 / 100	2095 ms	3396 KiB

Main

#include <bits/stdc++.h>

#define int long long

using namespace std;

signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int n;
    cin >> n;
    vector<pair<int,int>> a(n + 1);
    for(int i = 1; i <= n; i++) {
        cin >> a[i].first >> a[i].second;
        swap(a[i].first, a[i].second);
    }
    sort(a.begin() + 1, a.end());
    vector<int> u(n + 1);
    iota(u.begin() + 1, u.end(), 1);
    for(int i = 1; i <= n; i++) {
        for(int j = i + 1; j <= n; j++) {
            if(abs(a[i].second - a[j].second) <= a[j].first - a[i].first) {
                u[i] = j;
            }
        }
    }
    set<int> s;
    for(int i = 1; i <= n; i++) {
        s.insert(u[i]);
    }
    cout << s.size();
}

• Subtask 1: 0 / 10
• Subtask 2: 23 / 23
• Subtask 3: 36 / 36
• Subtask 4: 0 / 31