Submission #647159

#	Time	Username	Problem	Language	Result	Execution time	Memory
647159		danikoynov	Art Exhibition (JOI18_art)	C++14	100 / 100	598 ms	21012 KiB

art

/**
 ____ ____ ____ ____ ____ ____
||l |||e |||i |||n |||a |||d ||
||__|||__|||__|||__|||__|||__||
|/__\|/__\|/__\|/__\|/__\|/__\|

**/

#include<bits/stdc++.h>
#define endl '\n'

using namespace std;
typedef long long ll;

void speed()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
}

const int maxn = 5e5 + 10;

struct element
{
    ll v, s;

    bool operator < (const element &e) const
    {
        return s < e.s;
    }
}e[maxn];

int n;

void solve()
{
    cin >> n;
    for (int i = 1; i <= n; i ++)
    {
        cin >> e[i].s >> e[i].v;
    }

    sort(e + 1, e + n + 1);
    ll p = 0, b = -1e18, ans = 0;
    for (int i = 1; i <= n; i ++)
    {
        b = max(b, - p + e[i].s);
        p = p + e[i].v;
        ans = max(ans, p - e[i].s + b);
        ///cout << b << " " << i << endl;
    }

    cout << ans << endl;

}

int main()
{
    solve();
    return 0;
}

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