제출 #114177

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
114177		popovicirobert	Art Exhibition (JOI18_art)	C++14	100 / 100	218 ms	24956 KiB

art

#include <bits/stdc++.h>
#define lsb(x) (x & (-x))
#define ll long long
#define ull unsigned long long
// 217
// 44

using namespace std;

const ll INF = 1e18;

int main() {
    //ifstream cin("A.in");
    //ofstream cout("A.out");
    int i, n;
    ios::sync_with_stdio(false);
    cin.tie(0), cout.tie(0);

    cin >> n;

    vector < pair <ll, ll> > arr(n + 1);
    for(i = 1; i <= n; i++) {
        cin >> arr[i].first >> arr[i].second;
    }

    sort(next(arr.begin()), arr.end());

    vector <ll> spb(n + 1);
    for(i = 1; i <= n; i++) {
        spb[i] = spb[i - 1] + arr[i].second;
    }

    ll ans = -INF, mx = -INF;
    for(i = 1; i <= n; i++) {
        ans = max(ans, spb[i] - arr[i].first + mx);
        ans = max(ans, arr[i].second);
        mx = max(mx, arr[i].first - spb[i - 1]);
    }

    cout << ans;

    //cin.close();
    //cout.close();
    return 0;
}

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