Submission #397409

#	Time	Username	Problem	Language	Result	Execution time	Memory
397409		danielcm585	Art Exhibition (JOI18_art)	C++14	100 / 100	230 ms	20856 KiB

art

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

#define a first
#define b second

typedef long long ll;
typedef pair<ll,ll> ii;

const int N = 5e5;
const ll INF = 1e18;
int n;
ii v[N+2];

int main() {
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    cin >> n;
    for (int i = 1; i <= n; i++) {
        ll a, b; cin >> a >> b;
        v[i] = {a,b};
    }
    sort(v+1,v+n+1);
    for (int i = 2; i <= n; i++) {
        v[i].b += v[i-1].b;
    }
    ll ans = 0, mini = INF;
    for (int i = 1; i <= n; i++) {
        mini = min(mini,-v[i].a+v[i-1].b);
        ans = max(ans,-v[i].a+v[i].b-mini);
    }
    cout << ans << '\n';
    return 0;
}

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