제출 #1283609

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1283609		den1z19	Art Exhibition (JOI18_art)	C++20	100 / 100	132 ms	12184 KiB

art

#include "bits/stdc++.h"
#define endl '\n'
#define pb push_back
#define all(a) (a).begin(), (a).end()
#define rall(a) (a).rbegin(), (a).rend()
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef vector<ll> vl;
typedef vector<int> vi;
typedef vector<char> vc;
typedef vector<string> vs;
typedef vector<int>::iterator vit;
typedef set<int> si;
typedef map<int, int> mii;

void solve() {
  ll n, a, b;
  cin >> n;
  vector<pair<ll, ll>> art(n);

  for (auto &x : art)
    cin >> x.first >> x.second;
  sort(all(art));
  ll mx = 0;
  vl pre(n + 1);
  pre[0] = 0;

  for (ll i = 0; i < n; i++) {
    mx = max(mx, art[i].second);
    pre[i + 1] = pre[i] + art[i].second;
  }

  ll run_min = 0;
  for(ll i =1; i<=n;i++){
    mx= max(mx, pre[i]-art[i-1].first +run_min) ;
    run_min = max(run_min, art[i-1].first-pre[i-1]);
  }

  cout << mx << endl;
}

int main() {
  std::ios::sync_with_stdio(false);
  cin.tie(nullptr);
  unsigned long long ct = 1;
  // cin >> ct;
  while (ct--)
    solve();
}

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