Submission #730502

#	Time	Username	Problem	Language	Result	Execution time	Memory
730502		stevancv	Advertisement 2 (JOI23_ho_t2)	C++14	10 / 100	207 ms	6220 KiB

Main

#include <bits/stdc++.h>
#define ll long long
#define ld long double
#define sp ' '
#define en '\n'
#define smin(a, b) a = min(a, b)
#define smax(a, b) a = max(a, b)
using namespace std;
const int N = 1e5 + 2;
const int inf = 2e9 + 2;
int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int n; cin >> n;
    vector<int> x(n), y(n);
    for (int i = 0; i < n; i++) {
        cin >> x[i] >> y[i];
    }
    vector<int> ord(n);
    iota(ord.begin(), ord.end(), 0);
    sort(ord.begin(), ord.end(), [&] (int i, int j) {
        return x[i] + y[i] > x[j] + y[j];
    });
    int mn = inf;
    int ans = 0;
    for (int i : ord) if (x[i] - y[i] < mn) {
        mn = x[i] - y[i];
        ans += 1;
    }
    cout << ans << en;
    return 0;
}

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