Submission #922116

#	Time	Username	Problem	Language	Result	Execution time	Memory
922116		406	Art Exhibition (JOI18_art)	C++17	100 / 100	143 ms	20932 KiB

art

#include <bits/stdc++.h>
#define int int64_t
#define FOR(i, a, b) for (int i = (a); i < (b); ++i)

using namespace std;
using ar = array<int, 2>;

const int64_t INF = 1ll << 60;
const int N = 5e5 + 5;
int n, ps[N];
ar a[N];

signed main() {
        ios::sync_with_stdio(false);
        cin.tie(nullptr); 
        cin >> n;
        FOR(i, 1, n + 1) cin >> a[i][0] >> a[i][1];
        sort(a + 1, a + n + 1);
        int ps = 0, ans = 0, mx = 0;
        FOR(i, 1, n + 1) {
                mx = max(mx, -ps + a[i][0]);
                ps += a[i][1];
                ans = max(ans, ps + mx - a[i][0]);
        }
        cout << ans << '\n';
        return 0;
}

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