Submission #906301

#	Time	Username	Problem	Language	Result	Execution time	Memory
906301		OAleksa	Advertisement 2 (JOI23_ho_t2)	C++14	100 / 100	127 ms	18124 KiB

Main

#include <bits/stdc++.h>
using namespace std;
#define int long long
#define f first
#define s second

signed main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  cout.tie(0);
  int tt = 1;
  //cin >> tt;
  while (tt--) {
  	int n;
  	cin >> n;
  	vector<pair<int, int>> a(n);
  	for (int i = 0;i < n;i++) {
  		int x, y;
  		cin >> x >> y;
  		a[i] = {x - y, x + y};
  	}
  	sort(a.begin(), a.end(), [&](pair<int, int> x, pair<int, int> y) {
  		if (x.f == y.f)
  			return x.s > y.s;
  		return x.f < y.f;
  	});
  	int ans = 0, bst = -1;
  	for (int i = 0;i < n;i++) {
  		if (bst < a[i].s) {
  			bst = a[i].s;
  			++ans;
  		}
  	}
  	cout << ans;
	}
  return 0;
}

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