Submission #442848

#	Time	Username	Problem	Language	Result	Execution time	Memory
442848		dutch	Hiring (IOI09_hiring)	C++17	70 / 100	443 ms	30376 KiB

hiring

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

int n, w, j;
array<int, 2> res, s, c;

signed main(){
	cin.tie(0)->sync_with_stdio(0);
	cin >> n >> w;
	array<int, 4> a[n];
	for(auto &i : a){
		cin >> i[1] >> i[2];
		i[0] = (w * i[2]) / -i[1];
		i[3] = ++j;
	}

	sort(a, a+n);
	priority_queue<array<int, 3>> q, r;

	for(auto &i : a){
		q.push({i[2], i[1], i[3]});
		s[0] += i[2];
		s[1] += i[1];
		while(s[0] > -i[0]){
			s[0] -= q.top()[0];
			s[1] -= q.top()[1];
			q.pop();
		}
		res = max(res, {(int)q.size(), -s[1]});
	}

	vector<int> ans = {res[0]};
	s = {0, 0};
	for(auto &i : a){
		r.push({i[2], i[1], i[3]});
		s[0] += i[2];
		s[1] += i[1];
		while(s[0] > -i[0]){
			s[0] -= r.top()[0];
			s[1] -= r.top()[1];
			r.pop();
		}
		if((c = {(int)r.size(), -s[1]}) == res){
			while(!r.empty()) ans.push_back(r.top()[2]), r.pop();
			break;
		}
	}

	for(int i : ans) cout << i << '\n';
}

• Subtask 1: 24 / 30
• Subtask 2: 22 / 28
• Subtask 3: 3 / 6
• Subtask 4: 3 / 6
• Subtask 5: 3 / 6
• Subtask 6: 3 / 6
• Subtask 7: 3 / 6
• Subtask 8: 6 / 6
• Subtask 9: 3 / 6