Submission #653415

#	Time	Username	Problem	Language	Result	Execution time	Memory
653415		Dec0Dedd	Art Exhibition (JOI18_art)	C++14	100 / 100	543 ms	24984 KiB

art

#include <bits/stdc++.h>

using namespace std;

#define ll long long
#define pii pair<ll, ll>

const int N = 5e5+1;
const ll INF = 1e18;

vector<pii> v;

ll pref[N], mn=INF;

int main() {
   int n; cin>>n;
   for (int i=1; i<=n; ++i) {
      ll a, b; cin>>a>>b;
      v.push_back({a, b});
   }
   sort(v.begin(), v.end());

   ll ans=0;
   for (int i=1; i<=n; ++i) {
      pref[i]=pref[i-1]+v[i-1].second;
      mn=min(mn, pref[i-1]-v[i-1].first);
      ans=max(ans, pref[i]-v[i-1].first-mn);
   }
   cout<<ans<<"\n";
}

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