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답안 #638114

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
638114 2022-09-04T15:55:30 Z tvladm2009 학교 설립 (IZhO13_school) C++14
100 / 100
 238 ms 18132 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef long double ld;

const int MAX_N = 3 * 1e5;

ll a[MAX_N + 1], b[MAX_N + 1], pref[MAX_N + 1], suf[MAX_N + 1];
pair<ll, ll> c[MAX_N + 1];
multiset<ll> DS;

int n, m, s;

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);

    cin >> n >> m >> s;
    for (int i = 1; i <= n; i++) {
        cin >> a[i] >> b[i];
    }

    for (int i = 1; i <= n; i++) {
        c[i] = make_pair(b[i] - a[i], i);
    }
    sort(c + 1, c + n + 1);
    ll sum = 0;
    for (int i = 1; i <= m; i++) {
        DS.insert(a[c[i].second]);
        sum += a[c[i].second];
    }
    pref[m] = sum;
    for (int i = m + 1; i <= n; i++) {
        DS.insert(a[c[i].second]);
        sum += a[c[i].second];
        sum -= *DS.begin();
        DS.erase(DS.begin());
        pref[i] = sum;
    }
    DS.clear();
    sum = 0;
    for (int i = n - s + 1; i <= n; i++) {
        DS.insert(b[c[i].second]);
        sum += b[c[i].second];
    }
    suf[n - s + 1] = sum;
    for (int i = n - s; i >= 1; i--) {
        DS.insert(b[c[i].second]);
        sum += b[c[i].second];
        sum -= *DS.begin();
        DS.erase(DS.begin());
        suf[i] = sum;
    }

    ll ans = 0;
    for (int i = 0; i <= n; i++) {
        ans = max(ans, (ll)pref[i] + suf[i + 1]);
    }
    cout << ans;

    return 0;
}

Subtask #1
100.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 2 ms 512 KB Output is correct
8 Correct 2 ms 724 KB Output is correct
9 Correct 2 ms 724 KB Output is correct
10 Correct 2 ms 724 KB Output is correct
11 Correct 2 ms 596 KB Output is correct
12 Correct 2 ms 724 KB Output is correct
13 Correct 17 ms 3256 KB Output is correct
14 Correct 36 ms 4692 KB Output is correct
15 Correct 59 ms 8012 KB Output is correct
16 Correct 132 ms 14720 KB Output is correct
17 Correct 169 ms 14084 KB Output is correct
18 Correct 167 ms 14528 KB Output is correct
19 Correct 186 ms 15728 KB Output is correct
20 Correct 238 ms 18132 KB Output is correct