Submission #769306

#	Time	Username	Problem	Language	Result	Execution time	Memory
769306		tch1cherin	Advertisement 2 (JOI23_ho_t2)	C++17	100 / 100	342 ms	12800 KiB

Main

#include <bits/stdc++.h>
using namespace std;

int main() {
  int n;
  cin >> n;
  vector<pair<int, int>> p(n);
  for (int i = 0; i < n; i++) {
    int X, E;
    cin >> X >> E;
    p[i] = {E - X, E + X};
  }
  sort(p.rbegin(), p.rend());
  int ans = 0, pref = INT_MIN;
  for (auto [a, b] : p) {
    ans += b > pref;
    pref = max(pref, b);
  }
  cout << ans << "\n";
}

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