Submission #530567

#	Time	Username	Problem	Language	Result	Execution time	Memory
530567		FelipeH	Hotel (CEOI11_hot)	C++14	10 / 100	793 ms	16732 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());
  int resp = 0;
  for(int i = offer.size() - 1; i >= 0 && offer.size() - i <= o; i--){
    if(roomCost.empty()) break;
    // printf("processing offer (%d,%d)\n",offer[i].first, offer[i].second);
    int roomId = lower_bound(roomSize.begin(), roomSize.end(), offer[i].second) - roomSize.begin();
    // printf("-chose room %d (%d,%d)\n",roomId, roomCost[roomId], roomSize[roomId]);
    if(offer[i].first - roomCost[roomId] > 0) resp += offer[i].first - roomCost[roomId];
    roomCost.erase(roomCost.begin() + roomId); roomSize.erase(roomSize.begin() + roomId);
  }
  cout << resp << "\n";
  return 0;
}

Compilation message (stderr)

hot.cpp: In function 'int main()':
hot.cpp:22:60: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   22 |   for(int i = offer.size() - 1; i >= 0 && offer.size() - i <= o; i--){
      |                                           ~~~~~~~~~~~~~~~~~^~~~

• Subtask 1: 10 / 10
• Subtask 2: 0 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 10
• Subtask 6: 0 / 10
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10