Submission #922316

#	Time	Username	Problem	Language	Result	Execution time	Memory
922316		Shayan86	Advertisement 2 (JOI23_ho_t2)	C++14	100 / 100	156 ms	45228 KiB

Main

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

#pragma GCC optimize("O3,unroll-loops")
// #pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
// Ofast, O0, O1, O2, O3, unroll-loops, fast-math, trapv

typedef long long ll;
typedef pair<ll, ll> pll;
typedef pair<int, int> pii;

#define Mp          make_pair
#define sep         ' '
#define endl        '\n'
#define F	        first
#define S	        second
#define pb          push_back
#define all(x)      (x).begin(),(x).end()
#define kill(res)	cout << res << '\n', exit(0);
#define set_dec(x)	cout << fixed << setprecision(x);
#define fast_io     ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
#define file_io     freopen("input.txt", "r", stdin) ; freopen("output.txt", "w", stdout);

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

const ll N = 5e5 + 50;
const ll Mod = 1e9 + 7;

ll n, m;

vector<pll> vec;
vector<ll> daste[N];

int main(){
    fast_io;
    
    cin >> n;

    for(int i = 1; i <= n; i++){
        int x, y;
        cin >> x >> y;
        vec.pb({x+y, y-x});
    }
    sort(all(vec), greater<pll>());

    int cur = 1;
    for(int i = 0; i < n; i++){
        if(i == 0 || vec[i].F == vec[i-1].F){
            daste[cur].pb(vec[i].S);
        }
        else{
            cur++; daste[cur].pb(vec[i].S);
        }
    }

    ll cnt = 0, mx = -Mod;
    for(int i = 1; i <= cur; i++){
        sort(all(daste[i]), greater<ll>()); cnt++;
        if(mx >= daste[i][0]) cnt--;
        mx = max(mx, daste[i][0]);
    }

    cout << cnt;

}

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