Submission #710596

#	Time	Username	Problem	Language	Result	Execution time	Memory
710596		WonderfulWhale	Hotel (CEOI11_hot)	C++17	100 / 100	1060 ms	70676 KiB

hot

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

#define int int64_t
#define pb push_back
#define pii pair<int, int>
#define st first
#define nd second
#define all(x) (x).begin(), (x).end()
#define sz(x) (int)(x).size()

pii tab[500009];
bool vis[500009];
multiset<pii> S;

int32_t main() {
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);

	int n, m, o;
	cin >> n >> m >> o;
	for(int i=0;i<n;i++) {
		cin >> tab[i].st >> tab[i].nd;
		S.insert({tab[i].nd, tab[i].st});
	}
	vector<pii> v(m);
	for(int i=0;i<m;i++) {
		cin >> v[i].st >> v[i].nd;
		v[i].st*=-1;
	}
	sort(all(v));
	vector<int> ans;
	for(pii x:v) {
		x.st = -x.st;
		auto it = S.upper_bound({x.nd, -1});
		if(it!=S.end()) {
			int val = (*it).nd;
			if(val<x.st) {
				ans.pb(-(x.st-val));
			}
			S.erase(it);
		}
	}
	int res = 0;
	sort(all(ans));
	for(int i=0;i<min(sz(ans), o);i++) {
		res -= ans[i];
	}
	cout << res << "\n";
}

• 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