Submission #591001

#	Time	Username	Problem	Language	Result	Execution time	Memory
591001		web	Hotel (CEOI11_hot)	C++17	0 / 100	937 ms	36088 KiB

hot

#include <iostream>
#include <vector>
#include <algorithm>

using namespace std;

int binarySearchRoom(long people, long value, 
vector<long>& roomOffers, vector<pair<long,long> >& roomCaps)
{
    int min = 0, max = roomOffers.size();
    while(max > min)
    {
        int mid  = (max+min)/2;
        if(roomCaps[mid].first < people)
        {
            min = mid+1;
            continue;
        }
        else
        {
            if(roomOffers[mid] < value)
            {
                if(max == mid+1)
                    return mid;
                
                max = mid+1;
                continue;
            }
            else
            {
                min = mid+1;
                continue;
            }
        }
    }
    if(min == roomOffers.size())
        return -1;
    else
    {
        return min;
    }
}

int main()
{
    long n, m , o; cin>>n>>m>>o;

    vector<pair<long, long>> rooms(n);
    
    vector<pair<long,long> > offers(m);

    for(int i = 0; i<n; ++i)
    {
        long a,b; cin>>a>>b;

        rooms[i].second = -a;
        rooms[i].first = b;
    }
    for(int i = 0; i<m; ++i)
        cin>>offers[i].second>>offers[i].first;
    sort(rooms.begin(), rooms.end());
    sort(offers.rbegin(), offers.rend());

    

    vector<long> bestOfferRoom(n, 0);
    for(int i = 0; i<offers.size(); ++i)
    {
        int indexInsert = binarySearchRoom(offers[i].first, offers[i].second, bestOfferRoom, rooms);
        if(indexInsert != -1)
            bestOfferRoom[indexInsert] = offers[i].second;
    }
    
    for(int i = 0; i<n; ++i)
    {
        bestOfferRoom[i] += rooms[i].second;
    }
    sort(bestOfferRoom.rbegin(), bestOfferRoom.rend());
    long long sum = 0; 
    for(int i = 0; i<o; ++i)
    {
        sum += max(0l,bestOfferRoom[i]);
    }  
    cout<<sum<<endl;
    return 0;
}

Compilation message (stderr)

hot.cpp: In function 'int binarySearchRoom(long int, long int, std::vector<long int>&, std::vector<std::pair<long int, long int> >&)':
hot.cpp:36:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |     if(min == roomOffers.size())
      |        ~~~~^~~~~~~~~~~~~~~~~~~~
hot.cpp: In function 'int main()':
hot.cpp:67:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long int, long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   67 |     for(int i = 0; i<offers.size(); ++i)
      |                    ~^~~~~~~~~~~~~~

• Subtask 1: 0 / 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