제출 #216762

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
216762		tushar_2658	Art Exhibition (JOI18_art)	C++14	50 / 100	1096 ms	24696 KiB

art

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

const int maxn = 500005;
using ll = long long;

pair<ll, ll> p[maxn];

int main(int argc, char const *argv[])
{
//  freopen("in.txt", "r", stdin);
  int n;
  scanf("%d", &n);
  for(int i = 1; i <= n; i++){
    scanf("%lld %lld", &p[i].first, &p[i].second);
  }
  sort(p + 1, p + n + 1);
  vector<ll> pref(n + 1);
  for(int i = 1; i <= n; i++){
    pref[i] = pref[i - 1] + p[i].second;
  }
  ll ans = -1e18;
  for(int i = 1; i <= n; i++){
    for(int j = 1; j < i; j++){
      ans = max(ans, (pref[i] - pref[j - 1]) - p[i].first + p[j].first);
    }
    ans = max(ans, pref[i] - pref[i - 1]);
  }
  cout << ans << endl;

  return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

art.cpp: In function 'int main(int, const char**)':
art.cpp:13:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &n);
   ~~~~~^~~~~~~~~~
art.cpp:15:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld %lld", &p[i].first, &p[i].second);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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