Submission #140653

#	Time	Username	Problem	Language	Result	Execution time	Memory
140653		meatrow	Art Exhibition (JOI18_art)	C++17	100 / 100	263 ms	20984 KiB

art

//#pragma GCC optimize("O3")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,tune=native")
//#pragma GCC optimize ("unroll-loops")
#include <bits/stdc++.h>

using namespace std;

using ll = long long;
using ld = long double;


int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);
    int n;
    cin >> n;
    vector<pair<ll, ll>> a(n);
    for (auto& p : a) {
        cin >> p.first >> p.second;
    }
    sort(a.begin(), a.end());
    ll kek = a[0].first;
    ll sum = a[0].second;
    ll ans = sum;
    for (int i = 1; i < n; i++) {
        kek = max(kek, a[i].first - sum);
        sum += a[i].second;
        ans = max(ans, sum - a[i].first + kek);
    }
    cout << ans << endl;
    return 0;
}

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