Submission #200571

#	Time	Username	Problem	Language	Result	Execution time	Memory
200571		Asrapogorgon	Kisik (COCI19_kisik)	C++14	90 / 90	1445 ms	60480 KiB

kisik

#include <bits/stdc++.h>
using namespace std;
#define F first
#define S second
#define pb push_back
#define int long long 
const int maxn=1e6+7;
/*Almost copy pasted part :)*/
using namespace std;
int n,k;
vector<pair<int, int>>vec;
multiset<int>ms;
int32_t main(){
  ios::sync_with_stdio(0);
  cin>>n>>k;
  for(int i=0;i<n;i++) {
    int w,h;
    cin>>w>>h;
    vec.push_back({h,w});
  }
  sort(vec.begin(),vec.end());
  int pos=0;
  long long ans=1e18+7,sum=0;
  for (int i=1;i<maxn;i++){
    while(pos<n&&vec[pos].first<=i) {
      sum+=vec[pos].second;
      ms.insert(vec[pos].second);
      while(ms.size()>k) {
        sum-=*ms.rbegin();
        ms.erase(--ms.end());
      }
      pos++;
    }
    if(ms.size()==k) {
      ans=min(ans,sum*i);
    }
  }
  cout<<ans<<endl;
}

Compilation message (stderr)

kisik.cpp: In function 'int32_t main()':
kisik.cpp:28:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
       while(ms.size()>k) {
             ~~~~~~~~~^~
kisik.cpp:34:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if(ms.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