Submission #1218509

#	Time	Username	Problem	Language	Result	Execution time	Memory
1218509		agrim_09	Advertisement 2 (JOI23_ho_t2)	C++20	100 / 100	104 ms	8732 KiB

Main

// #pragma GCC optimize("O3,unroll-loops")
// #pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
using namespace std;
using namespace __gnu_pbds;
template <class T>
using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
#define endl '\n';
#define fastio ios_base::sync_with_stdio(false); cin.tie(NULL);
#define py cout << "YES" << endl;
#define pn cout << "NO" << endl;
#define all(x) (x).begin(), (x).end()
#define pb push_back
#define int long long
typedef long long ll;
typedef unsigned long long ull;
const ll inf = 1e18;
const ll mod = 1e9+7;


// #ifndef ONLINE_JUDGE
// #include "algo/Standard_Stuff/debug.cpp"
// #else
// #define debug(...) 42
// #endif

// void judge(){
//     srand(time(NULL));
//     #ifndef ONLINE_JUDGE
//     freopen("1.txt","r",stdin);
//     freopen("2.txt","w",stdout);
//     #endif
// }

// Look for edge cases!!!
signed main(){
    fastio; //judge();
    int n; cin >> n;
    vector<pair<int, int>>points;
    for(int i = 0;i<n;i++){
        int a,b; cin >> a >> b;
        points.pb({a+b,b-a});
    }
    sort(all(points),[](auto &i, auto &j){
        if(i.first!=j.first){
            return i.first > j.first;
        }
        return i.second > j.second;
    });
    int ans = 0;
    int maxi = -1*inf;
    for(auto &[x,y]:points){
        if(maxi<y){
            ans++; maxi = y;
        }
    }
    cout << ans;
}

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