Submission #1221314

#	Time	Username	Problem	Language	Result	Execution time	Memory
1221314		sula2	Advertisement 2 (JOI23_ho_t2)	C++20	0 / 100	66 ms	1348 KiB

Main

#include <bits/stdc++.h>
#define all(a) (a).begin(), (a).end()
using namespace std;

int main() {
    int n; cin >> n;
    pair<int,int> a[n];
    for (auto& [x, y] : a) {
        int pos, inf; cin >> pos >> inf;
        x = inf + pos;
        y = inf - pos;
    }
    sort(a, a+n);
    vector<int> lis;
    for (auto [x, y] : a) {
        auto it = upper_bound(all(lis), y);
        if (it == lis.end())
            lis.push_back(y);
        else
            *it = y;
    }
    cout << lis.size();
}

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