Submission #96698

#	Time	Username	Problem	Language	Result	Execution time	Memory
96698		nandonathaniel	Kisik (COCI19_kisik)	C++14	90 / 90	699 ms	54604 KiB

kisik

#include<bits/stdc++.h>
using namespace std;
typedef long long LL;
const LL MAXN=1000000;

vector<LL> rec[MAXN+5];
priority_queue<LL> PQ;

int main(){
	ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    LL n,k,h,w;
    cin >> n >> k;
    for(LL i=1;i<=n;i++){
    	cin >> w >> h;
    	rec[h].push_back(w);
	}
	LL res=0;
	LL ans=2e18;
	for(LL i=1;i<=MAXN;i++){
		for(LL j=0;j<rec[i].size();j++){
			res+=rec[i][j];
			PQ.push(rec[i][j]);
			if(PQ.size()==k){
				ans=min(ans,res*i);
				LL gede=PQ.top();
				PQ.pop();
				res-=gede;
			}
		}
	}
	cout << ans << endl;
	return 0;
}

Compilation message (stderr)

kisik.cpp: In function 'int main()':
kisik.cpp:22:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(LL j=0;j<rec[i].size();j++){
              ~^~~~~~~~~~~~~~
kisik.cpp:25:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    if(PQ.size()==k){
       ~~~~~~~~~^~~

• 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