Submission #530712

#	Time	Username	Problem	Language	Result	Execution time	Memory
530712		peuch	Hotel (CEOI11_hot)	C++17	Compilation error	0 ms	0 KiB

hot

#include<bits/stdc++.h>
using namespace std;
using pii = pair<int,int>;
 
vector<int> roomSize, roomCost;
vector<pii> offer;
 
int main(){
  int n, m, o; cin >> n >> m >> o;
  for(int i = 0;i<n;i++){
    int a, b; cin >> a >> b;
    roomCost.push_back(a); roomSize.push_back(b);
  }
  sort(roomCost.begin(),roomCost.end());
  sort(roomSize.begin(),roomSize.end());
  for(int i = 0;i<m;i++){
    int a, b; cin >> a >> b;
    offer.push_back(make_pair(a,b));
  }
  sort(offer.begin(),offer.end());
  long long int resp = 0;
  multiset<long long> moedas;
  for(int i = offer.size() - 1; i >= 0; i--){
    if(roomCost.empty()) break;
    // printf("processing offer (%d,%d)\n",offer[i].first, offer[i].second);
    auto it = lower_bound(roomSize.begin(), roomSize.end(), offer[i].second);
    if(it == roomSize.end()) continue;
    int roomId = it - roomSize.begin();
    if(offer[i].first - roomCost[roomId] > 0){
      // printf("-chose room %d (%d,%d) with %d profit\n",roomId, roomCost[roomId], roomSize[roomId], offer[i].first - roomCost[roomId]);
      resp += offer[i].first - roomCost[roomId];
      moedas.insert(offer[i].first - roomCost[roomId]);
      if(moedas.size() > o){
        resp -= *moedas.begin();
        moedas.erase(moedas.begin());
      }
      roomCost.erase(roomCost.begin() + roomId); roomSize.erase(roomSize.begin() + roomId);
      cnt++;
    }
  }
  cout << resp << "\n";
  return 0;
}

Compilation message (stderr)

hot.cpp: In function 'int main()':
hot.cpp:35:24: warning: comparison of integer expressions of different signedness: 'std::multiset<long long int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   35 |       if(moedas.size() > o){
      |          ~~~~~~~~~~~~~~^~~
hot.cpp:40:7: error: 'cnt' was not declared in this scope; did you mean 'int'?
   40 |       cnt++;
      |       ^~~
      |       int