Submission #100529

#	Time	Username	Problem	Language	Result	Execution time	Memory
100529		Feeder	Kisik (COCI19_kisik)	C++11	90 / 90	365 ms	28628 KiB

kisik

#include<bits/stdc++.h>
using namespace std;
int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	int n, k, w, h;
	long long mn = 1e18, curw = 0;
	vector<pair<int, int> > vec;
	cin >> n >> k;
	for(int i=0; i<n; i++){
		cin >> w >> h;
		vec.push_back(make_pair(h, w));
	}
	priority_queue<int> pq;
	sort(vec.begin(), vec.end());
	for(int i=0; i<k; i++){
		curw += vec[i].second;
		pq.push(vec[i].second);
	}
	mn = min(mn, curw * vec[k-1].first);
	for(int i=k; i<n; i++){
		if(vec[i].second >= pq.top()) continue;
		curw -= pq.top();
		pq.pop();
		curw += vec[i].second;
		pq.push(vec[i].second);
		mn = min(mn, curw * vec[i].first);
	}
	cout << mn;
}

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 10 / 10
• Subtask 6: 10 / 10
• Subtask 7: 10 / 10
• Subtask 8: 10 / 10
• Subtask 9: 10 / 10