Submission #1130264

#	Time	Username	Problem	Language	Result	Execution time	Memory
1130264		AksLolCoding	Advertisement 2 (JOI23_ho_t2)	C++20	100 / 100	135 ms	4168 KiB

Main

#include <bits/stdc++.h>
using namespace std;

void solve() {
    int n;
    cin >> n;
    vector<array<int, 2>> a(n);
    for (auto &i: a) {
        int x, e;
        cin >> x >> e;
        i = {x-e, -(x+e)};
    }

    // solve
    sort(begin(a), end(a));
    int max = -1, cnt = 0;
	for (auto &i: a) if (max < -i[1]) max = -i[1], cnt++;

    // ans
    cout << cnt << '\n';
}

signed main() {
    cin.tie(0)->sync_with_stdio(0);
    solve();
}

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