Submission #851020

#	Time	Username	Problem	Language	Result	Execution time	Memory
851020		NamPE	Art Exhibition (JOI18_art)	C++17	100 / 100	570 ms	52468 KiB

art

#include <bits/stdc++.h>

using namespace std;
typedef long long ll;

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

    ll n;
    cin >> n;

    multiset<pair<ll, ll>> s;
    vector<pair<ll, ll>> v;

    for (ll i = 0; i < n; i++) {
        ll a, b;
        cin >> a >> b;

        s.insert({a, b});
        v.push_back({a, b});
    }

    sort(v.begin(), v.end());

    ll l, sum, ans;
    l = sum = ans = 0;
    
    for (auto [a, b] : v) {
        l = min(l, sum - a);
        sum += b;
        ans = max(ans, sum - a - l);
    }

    cout << ans;
}

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 50 / 50