Submission #1026270

#	Time	Username	Problem	Language	Result	Execution time	Memory
1026270		vanea	Art Exhibition (JOI18_art)	C++14	100 / 100	159 ms	12188 KiB

art

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

const ll NINF = -1e18;

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int n;
    cin >> n;
    vector<array<ll, 2>> v(n+1);
    vector<ll> pref(n+1);
    for(int i = 1; i <= n; i++) {
        cin >> v[i][0] >> v[i][1];
    }
    sort(v.begin(), v.end());
    for(int i = 1; i <= n; i++) {
        pref[i] = v[i][1] + pref[i-1];
    }
    ll ans = pref[1];
    ll mx = v[1][0];
    for(int i = 2; i <= n; i++) {
        mx = max(mx, v[i][0] - pref[i-1]);
        ans = max(ans, pref[i]-v[i][0] + mx);
    }
    cout << ans;
    return 0;
}

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