Submission #1097772

#	Time	Username	Problem	Language	Result	Execution time	Memory
1097772		SulA	Art Exhibition (JOI18_art)	C++17	50 / 100	1095 ms	20820 KiB

art

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define bitcount __builtin_popcountll
using namespace std;
using namespace __gnu_pbds;
using ordered_set = tree<long long,null_type,less_equal<>,rb_tree_tag,tree_order_statistics_node_update>;

#define int long long

signed main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr); cout.tie(nullptr);

    int n; cin >> n;
    pair<int,int> a[n];
    for (int i = 0; i < n; cin >> a[i].first >> a[i++].second);
    sort(a, a + n);

    long long ans = 0;
    for (int l = 0; l < n; l++) {
        long long mn = a[l].first, mx = a[l].first, sum = 0;
        for (int r = l; r < n; r++) {
            mn = min(mn, a[r].first);
            mx = max(mx, a[r].first);
            sum += a[r].second;
            ans = max(ans, sum - (mx - mn));
        }
    }
    cout << ans;
}

Compilation message (stderr)

art.cpp: In function 'int main()':
art.cpp:17:52: warning: operation on 'i' may be undefined [-Wsequence-point]
   17 |     for (int i = 0; i < n; cin >> a[i].first >> a[i++].second);
      |                                                   ~^~

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 0 / 50