Submission #1253906

#	Time	Username	Problem	Language	Result	Execution time	Memory
1253906		tvgk	Art Exhibition (JOI18_art)	C++20	100 / 100	107 ms	12112 KiB

art

#include<bits/stdc++.h>
using namespace std;
#define task "a"
#define se second
#define fi first
#define ll long long
#define ii pair<ll, ll>
const long mxN = 5e5 + 7;
const ll inf = 1e18;

int n;
ll pre[mxN];
ii a[mxN];

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    //freopen(task".INP", "r", stdin);
    //freopen(task".OUT", "w", stdout);

    cin >> n;
    for (int i = 1; i <= n; i++)
        cin >> a[i].fi >> a[i].se;
    sort(a + 1, a + n + 1);

    ll ans = 0, mn = inf;
    for (int i = 1; i <= n; i++)
    {
        pre[i] = pre[i - 1] + a[i].se;
        mn = min(mn, pre[i - 1] - a[i].fi);
        ans = max(ans, pre[i] - a[i].fi - mn);
    }
    cout << ans;
}

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