제출 #272059

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
272059		okaragul	Art Exhibition (JOI18_art)	C++17	0 / 100	4 ms	640 KiB

art

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

#define lli long long
#define INF LONG_LONG_MAX
#define pb push_back
#define mp make_pair
#define st first
#define nd second
#define endl '\n'
#define max(aa, bb) (aa > bb ? aa:bb)
#define min(aa, bb) (aa < bb ? aa:bb)
#define all(aa) aa.begin(), aa.end()

int main(){
	#ifndef ONLINE_JUDGE
		freopen("zgir.gir", "r", stdin);
		freopen("zcik.cik", "w", stdout);
	#endif

	lli n;
	cin>>n;
	
	vector<pair<lli,lli>>v(n);
	for(auto &it:v){
		cin>>it.st>>it.nd;
	}

	sort(all(v));

	lli tmp=v[0].nd, cvp=0;

	for(lli i=1;i<n;i++){
		tmp=max(tmp-v[i].st+v[i-1].st+v[i].nd, v[i].nd);
		cvp=max(cvp, tmp);
	}
	cout<<cvp<<endl;
}

컴파일 시 표준 에러 (stderr) 메시지

art.cpp: In function 'int main()':
art.cpp:17:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   17 |   freopen("zgir.gir", "r", stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
art.cpp:18:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   18 |   freopen("zcik.cik", "w", stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

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