Submission #284644

#	Time	Username	Problem	Language	Result	Execution time	Memory
284644		triplem5ds	Art Exhibition (JOI18_art)	C++14	100 / 100	224 ms	20860 KiB

art

#pragma GCC optimize ("O3")
#pragma GCC optimize ("unroll-loops")

#include "bits/stdc++.h"
using namespace std;

#define pb push_back
#define F first
#define S second
#define f(i,a,b)  for(int i = a; i < b; i++)
#define endl '\n'

using ll = long long;
using db = long double;
using ii = pair<int, int>;

const int N = 2e5 + 5, LG = 19, MOD = 1e9 + 7;
const int SQ =225;
const long double EPS = 1e-7;


int32_t main(){
//#ifdef ONLINE_JUDGE
    ios_base::sync_with_stdio(0);
    cin.tie(0);
//#endif

  int n;
  cin >> n;
  vector<pair<ll, ll>> v(n);

  for(auto & x : v) cin >> x.F >> x.S;

  sort(v.begin(),v.end());

  ll mx = v[0].S, cur = v[0].S;

  f(i,1,n){
    cur += v[i].S;
    cur -= (v[i].F - v[i-1].F);
    cur = max(cur, v[i].S);
    mx = max(mx, cur);
  }

  cout << mx << endl;

  return 0;
}

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