Submission #1129893

#	Time	Username	Problem	Language	Result	Execution time	Memory
1129893		c0det1ger	Advertisement 2 (JOI23_ho_t2)	C++20	100 / 100	155 ms	12368 KiB

Main

#include <bits/stdc++.h>
#pragma GCC optimize ("O3")
#pragma GCC target ("sse4")
using namespace std;

#define int long long
#define double long double
#define codetiger_orz cin.tie(0);cin.sync_with_stdio(0);

signed main() {
    codetiger_orz
    
    int n;
    cin >> n;
    vector<pair<int, int>> v(n);
    for (int i = 0; i < n; i++){
        cin >> v[i].first >> v[i].second;
        v[i] = {v[i].first + v[i].second, v[i].second - v[i].first};
    }
    sort(v.begin(), v.end());
    stack<int> stk;
    for (int i = 0; i < n; i++){
        while (!stk.empty() && stk.top() <= v[i].second){
            stk.pop();
        }
        stk.push(v[i].second);
    }
    cout << stk.size() << "\n";
}

 
/*
 ____   ___    ___     ____  _____          ____    ____   ___
|      |   |  |   \   |        |     /|    |       |      |   \
|      |   |  |    |  |____    |      |    |   _   |____  |___/
|      |   |  |    |  |        |      |    |    |  |      |  \
|____  |___|  |___/   |____    |    __|__  |____|  |____  |   \
 
*/

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