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답안 #672990

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
672990 2022-12-19T10:26:21 Z viwlesxq 학교 설립 (IZhO13_school) C++17
95 / 100
 2000 ms 13500 KB 
#include "bits/stdc++.h"
using namespace std;

typedef long long ll;
typedef string str;

#define pb push_back
#define pf push_front
#define ppb pop_back
#define ppf pop_front
#define F first
#define S second
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define sz(x) (int)x.size()

const int N = 3e5;
ll pref[N], suff[N];
 
signed main() {
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	int n, m, s;
	cin >> n >> m >> s;
	int a[n], b[n];
	vector <pair <int, int>> v;
	for (int i = 0; i < n; i++) {
		cin >> a[i] >> b[i];
		v.pb({a[i] - b[i], i});
	}
	sort(rall(v));
	multiset <int> cur;
	ll sum = 0;
	for (int i = 0; i < m; i++) {
		cur.insert(a[v[i].S]);
		sum += a[v[i].S];
	}
	pref[m-1] = sum;
	for (int i = m; i < n; i++) {
		int can = a[v[i].S];
		if (*cur.begin() < can) {
			sum -= *cur.begin();
			cur.erase(cur.begin());
			cur.insert(can);
			sum += can;
		}
		pref[i] = sum;
	}
	sum = 0;
	cur.clear();
	for (int i = n - 1; i >= n - s; i--) {
		cur.insert(b[v[i].S]);
		sum += b[v[i].S];
	}
	suff[n-s] = sum;
	for (int i = n - s - 1; i >= 0; i--) {
		int can = b[v[i].S];
		if (*cur.begin() < can) {
			sum -= *cur.begin();
			cur.erase(cur.begin());
			cur.insert(can);
			sum += can;
		}
		suff[i] = sum;
	}
	ll ans = 0;
	for (int i = m - 1; i < n - s; i++) {
		ans = max(ans, pref[i] + suff[i+1]);
	}
	cout << ans;
}

Subtask #1
95.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Execution timed out 2074 ms 212 KB Time limit exceeded
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 2 ms 468 KB Output is correct
8 Correct 2 ms 588 KB Output is correct
9 Correct 2 ms 596 KB Output is correct
10 Correct 2 ms 596 KB Output is correct
11 Correct 2 ms 596 KB Output is correct
12 Correct 2 ms 596 KB Output is correct
13 Correct 16 ms 2644 KB Output is correct
14 Correct 29 ms 3536 KB Output is correct
15 Correct 51 ms 5500 KB Output is correct
16 Correct 128 ms 11944 KB Output is correct
17 Correct 140 ms 10660 KB Output is correct
18 Correct 148 ms 10820 KB Output is correct
19 Correct 172 ms 11708 KB Output is correct
20 Correct 181 ms 13500 KB Output is correct