Submission #802948

#	Time	Username	Problem	Language	Result	Execution time	Memory
802948		aymanrs	Advertisement 2 (JOI23_ho_t2)	C++14	100 / 100	120 ms	14032 KiB

Main

#include<bits/stdc++.h>
const int MOD = 1e9+7;
using namespace std;
void solve(){
	vector<pair<int, int>> v;
	int n, x, e;
	cin >> n;
	while(n--){
		cin >> x >> e;
		v.emplace_back(e+x, e-x);
	}
	sort(v.begin(), v.end());
	int ans = 0;
	while(!v.empty()){
		ans++;
		e = v.back().second;
		v.pop_back();
		while(!v.empty() && v.back().second <= e) v.pop_back();
	}
	cout << ans << '\n';

}
int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	solve();
}

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