Submission #825231

#	Time	Username	Problem	Language	Result	Execution time	Memory
825231		dijbkr	Art Exhibition (JOI18_art)	C++14	0 / 100	0 ms	212 KiB

art

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

int main() {
   ios_base::sync_with_stdio(false);
   cin.tie(NULL); cout.tie(NULL);
   ll n;
   cin >> n;
   pair<ll,ll>p[n+2];
   for (ll i=1; i<=n; i++) {
      cin >> p[i].first >> p[i].second;
   }
   sort(p+1,p+n+1);
   ll pref[n+4];
   memset(pref,0,sizeof(pref));
   for (ll i=1; i<=n; i++) {
      pref[i]=pref[i-1]+p[i].second;
   }
   ll ans=0;
   for (ll i=1; i<n; i++) {
      for (ll j=i+1; j<=n; j+=i) {
         ans=max(ans,(pref[j]-pref[i-1])-p[j].first+p[i].first);
      }
   }
   cout << ans;
}

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