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Submission #1063549

# Submission time Handle Problem Language Result Execution time Memory
1063549 2024-08-17T20:20:00 Z VMaksimoski008 Schools (IZhO13_school) C++17
100 / 100
 195 ms 16076 KB 
#include <bits/stdc++.h>
//#define int long long

using namespace std;

using ll = long long;
using pii = pair<int, int>;
using pll = pair<ll, ll>;

const int mod = 1e9 + 7;
const int LOG = 20;
const int maxn = 1e5 + 5;

signed main() {
    int n, a, b;
    cin >> n >> a >> b;

    vector<pii> v(n);
    for(auto &x : v) cin >> x.first >> x.second;
    sort(v.rbegin(), v.rend());

    ll pref=0, suf=0;
    priority_queue<int> pq;
    for(int i=0; i<a; i++) {
        pref += v[i].first;
        pq.push(v[i].second - v[i].first);
    }

    multiset<ll> ms;
    for(int i=a; i<n; i++) ms.insert(v[i].second), suf += v[i].second;

    while(ms.size() > b) {
        suf -= *ms.begin();
        ms.erase(ms.begin());
    }

    ll ans = pref + suf;
    for(int i=a; i<a+b; i++) {
        pref += v[i].first;

        pq.push(v[i].second - v[i].first);
        pref += pq.top(); pq.pop();

        suf -= *ms.lower_bound(v[i].second);
        ms.erase(ms.lower_bound(v[i].second));

        ans = max(ans, pref + suf);
    }

    cout << ans << '\n';
    return 0;
}

Compilation message

school.cpp: In function 'int main()':
school.cpp:32:21: warning: comparison of integer expressions of different signedness: 'std::multiset<long long int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   32 |     while(ms.size() > b) {
      |           ~~~~~~~~~~^~~

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 600 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 3 ms 520 KB Output is correct
8 Correct 3 ms 348 KB Output is correct
9 Correct 2 ms 348 KB Output is correct
10 Correct 2 ms 528 KB Output is correct
11 Correct 3 ms 604 KB Output is correct
12 Correct 3 ms 600 KB Output is correct
13 Correct 14 ms 1384 KB Output is correct
14 Correct 64 ms 5200 KB Output is correct
15 Correct 108 ms 10668 KB Output is correct
16 Correct 159 ms 11236 KB Output is correct
17 Correct 141 ms 11208 KB Output is correct
18 Correct 146 ms 12396 KB Output is correct
19 Correct 165 ms 13512 KB Output is correct
20 Correct 195 ms 16076 KB Output is correct