Submission #1164410

#	Time	Username	Problem	Language	Result	Execution time	Memory
1164410		Darren0724	Hotel (CEOI11_hot)	C++20	100 / 100	531 ms	30024 KiB

hot

#include <bits/stdc++.h>
using namespace std;
#define ll long long
mt19937 rnd(chrono::steady_clock::now().time_since_epoch().count());

int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int n,m,k;cin>>n>>m>>k;
    multiset<pair<int,int>> s;
    for(int i=0;i<n;i++){
        int a,b;cin>>a>>b;
        s.insert({b,a});
    }
    vector<pair<int,int>> v(m);
    for(int i=0;i<m;i++){
        cin>>v[i].first>>v[i].second;
    }
    sort(v.begin(),v.end(),greater<>());
    vector<int> ans1;
    for(int i=0;i<m;i++){
        auto it=s.lower_bound({v[i].second,0});
        if(it!=s.end()){
            ans1.push_back(v[i].first-it->second);
            s.erase(it);
        }
    }
    sort(ans1.begin(),ans1.end(),greater<>());
    ll ans=0;
    for(int i=0;i<min(k,(int)ans1.size());i++){
        ans+=max(0,ans1[i]);
    }
    cout<<ans<<endl;
    return 0;
}

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