Submission #979861

#	Time	Username	Problem	Language	Result	Execution time	Memory
979861		pera	Art Exhibition (JOI18_art)	C++17	100 / 100	398 ms	25168 KiB

art

#include<bits/stdc++.h>
#define int long long
using namespace std;
const int N = 5e5 + 1;
main(){
   int n;
   cin >> n;
   vector<int> A(n) , B(n) , ord(n);
   iota(ord.begin() , ord.end() , 0);
   for(int i = 0;i < n;i ++){
      cin >> A[i] >> B[i];
   }
   sort(ord.begin() , ord.end() , [&](int i , int j){
      return A[i] < A[j];
   });
   int mn , ans = 0 , sum_B = 0;
   for(int i = 0;i < n;i ++){
      mn = (i == 0 ? sum_B - A[ord[i]] : min(mn , sum_B - A[ord[i]]));
      sum_B += B[ord[i]];
      ans = max(ans , sum_B - mn - A[ord[i]]);
   }
   cout << ans << endl;
}

Compilation message (stderr)

art.cpp:5:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    5 | main(){
      | ^~~~

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