제출 #538734

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
538734		fabijan_cikac	Hiring (IOI09_hiring)	C++17	0 / 100	699 ms	40180 KiB

hiring

#include <bits/stdc++.h>

using namespace std;

#define F first
#define S second
#define db double
#define pp pair<db, db>
#define ppp pair<db, pp>

int n; db w;
vector<db> sk;
vector<db> q;
vector<pair<db, int> > v;
multiset<db> s; int siz = 0;
map<int, deque<int> > mp;

int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    cin >> n >> w;
    sk.resize(n); q.resize(n);
    for (int i = 0; i < n; ++i){
        cin >> sk[i] >> q[i]; mp[(int)(q[i])].push_back(i + 1);
        v.push_back({sk[i] / q[i], i});
    }
    sort(v.begin(), v.end()); db sum = 0;
    for (int i = 0; i < n; ++i){
        db val = q[v[i].S];
        s.insert(val); sum += val;
        while (!s.empty() && sum * v[i].F > w){
            auto it = s.end(); --it;
            sum -= (*it); s.erase(it);
        }
        siz = max(siz, (int)(s.size()));
    }
    cout << siz << '\n'; s.clear(); sum = 0;
    /*for (int i = 0; i < n; ++i){
        db val = q[v[i].S];
        s.insert(val); sum += val;
        while (!s.empty() && sum * v[i].F > w){
            auto it = s.end(); --it;
            sum -= (*it); s.erase(it);
        }
        if (siz == (int)(s.size())){
            while (!s.empty()){
                auto it = s.begin(); int x = (int)(*it); s.erase(it);
                cout << mp[x].front() << '\n'; mp[x].pop_front();
            }
            break;
        }
    }*/

    return 0;
}

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