Submission #1093343

#	Time	Username	Problem	Language	Result	Execution time	Memory
1093343		mar	Hotel (CEOI11_hot)	C++14	30 / 100	686 ms	39764 KiB

hot

#include<bits/stdc++.h>
using namespace std;

typedef long long ll;
set<pair<int,int>>room;

int main() {
    int n,m,o; cin>>n>>m>>o;
    
    for(int i = 0; i<n; i++) {
        int c, p; cin>>c>>p;
        room.insert({p, c});
    }
    vector<pair<int,int>> of(m);
    for(int i = 0; i < m; i++) {
        cin>>of[i].first>>of[i].second;
    }
    sort(of.begin(), of.end());
    reverse(of.begin(), of.end());
 
    vector<int>vals;
    for(int i=0; i<m; i++) {
        auto it = room.lower_bound({of[i].second, 0});
        if(it == room.end()) {
            continue;
        }
        vals.push_back(of[i].first-it->second);
        room.erase(it);
    }
    sort(vals.rbegin(), vals.rend());
 
    ll ans = 0;
    for(int i=0; i<vals.size() && i<o; i++) {
        ans += max(vals[i], 0);
    }
    cout<<ans<<endl;
 
    return 0;
}

Compilation message (stderr)

hot.cpp: In function 'int main()':
hot.cpp:33:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |     for(int i=0; i<vals.size() && i<o; i++) {
      |                  ~^~~~~~~~~~~~

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