Submission #1281796

#	Time	Username	Problem	Language	Result	Execution time	Memory
1281796		hynmj	Advertisement 2 (JOI23_ho_t2)	C++20	0 / 100	37 ms	4208 KiB

Main

#include <bits/stdc++.h>
#define int long long
using namespace std;
const long long N = 2e5 + 5;
struct home
{
    int e, x;
};
home a[N];
void solve()

{
    int n;
    cin >> n;
    vector<int> stak;
    for (int i = 0; i < n; i++)
    {
        cin >> a[i].x >> a[i].e;
    }
    sort(a, a + n, [&](home a, home b)
         { return a.x < b.x; });
    for (int i = 0; i < n; i++)
    {
        int e = a[i].x - a[i].e;
        // cout << e << endl;
        while (stak.size() and e <= stak.back())
        {
            stak.pop_back();
        }
        // e = +a[i].x - a[i].e;
        stak.push_back(e);
    }
    cout << stak.size() << endl;
}

signed main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(NULL);
    cout.tie(NULL);
    int t = 1;
    // cin >> t;
    for (int i = 1; i <= t; i++)
    {
        // cout << "Case #" << i << ':' << ' ';
        solve();
        cout << endl;
    }
    return 0;
}

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