Submission #1160145

#	Time	Username	Problem	Language	Result	Execution time	Memory
1160145		Hanksburger	Advertisement 2 (JOI23_ho_t2)	C++20	100 / 100	106 ms	12260 KiB

Main

#include <bits/stdc++.h>
#define int long long
using namespace std;
vector<pair<int, int> > vec;
stack<int> s;
signed main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int n;
    cin >> n;
    for (int i=0; i<n; i++)
    {
        int x, y;
        cin >> x >> y;
        vec.push_back({x+y, y-x});
    }
    sort(vec.begin(), vec.end());
    for (int i=0; i<n; i++)
    {
        while (!s.empty() && s.top()<=vec[i].second)
            s.pop();
        s.push(vec[i].second);
    }
    cout << s.size();
}

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