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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. using LL = long long;
  4. void solve(){
  5.     int D,N,K;
  6.     cin>>D>>N>>K;
  7.     vector<vector<int>> S(D+1),E(D+1);
  8.     for(int i=0,h,s,e;i<N;++i){
  9.         cin>>h>>s>>e;
  10.         S[s].push_back(h);
  11.         E[e].push_back(h);
  12.     }
  13.     multiset<int> ms,ns;
  14.     LL ans=0,sum=0;
  15.     for(int x=1;x<=D;++x){
  16.         for(int h:S[x]){
  17.             sum+=h;
  18.             ms.insert(h);
  19.             if((int)ms.size()>K){
  20.                 sum-=*ms.begin();
  21.                 ns.insert(*ms.begin());
  22.                 ms.erase(ms.begin());
  23.             }
  24.         }
  25.         ans=max(ans,sum);
  26.         for(int h:E[x]){
  27.             if(ns.find(h)!=ns.end())ns.erase(ns.find(h));
  28.             else{
  29.                 sum-=h;
  30.                 ms.erase(ms.find(h));
  31.                 if(!ns.empty()){
  32.                     sum+=*ns.rbegin();
  33.                     ms.insert(*ns.rbegin());
  34.                     ns.erase(ns.find(*ns.rbegin()));
  35.                 }
  36.             }
  37.         }
  38.     }
  39.     cout<<ans<<"\n";
  40. }
  41. int main(){
  42.     cin.tie(nullptr)->sync_with_stdio(false);
  43.     int T;
  44.     cin>>T;
  45.     for(int t=1;t<=T;++t)solve();
  46.     return 0;
  47. }
  48.  
Success #stdin #stdout 0.05s 5268KB
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https://ideone.com/ZvEp3d
language:
C++ (gcc 8.3)
created:
3 days ago
visibility:
public

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