Submission #1115725

#	Time	Username	Problem	Language	Result	Execution time	Memory
1115725		staszic_ojuz	Art Exhibition (JOI18_art)	C++17	100 / 100	437 ms	19440 KiB

art

#include <bits/stdc++.h>
using namespace std;
using ll = long long;

int main()
{
    int n;
    cin >> n;
    vector<pair<ll, ll>> sv;
    ll suma = 0;
    sv.push_back({0, 0});
    for(int i = 0; i < n; ++i)
    {
        ll a, b;
        cin >> a >> b;
        suma += b;
        sv.push_back({a, b});
    }
    sort(sv.begin(), sv.end());
    sv.push_back({0, 0});
    ll sp[n+1];
    sp[0] = 0;
    for(int i = 1; i <= n; ++i)
        sp[i] = sp[i-1] + sv[i].second - (sv[i+1].first - sv[i].first);
    ll mi = 0;
    ll odp = 0;
    for(int i = 1; i <= n; ++i)
    {
        odp = max(odp, sp[i]-mi+(sv[i+1].first - sv[i].first));
        mi = min(mi, sp[i]);
    }
    cout << odp;
}

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