제출 #127284

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
127284		hungcung	Art Exhibition (JOI18_art)	C++14	100 / 100	262 ms	8396 KiB

art

#include<bits/stdc++.h>
#pragma GCC Optimize ("O3")
using namespace std;
long long n,sum,ans=INT_MIN,tmp=INT_MIN;
pair<long long,long long> a[500005];
int main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	scanf("%lld",&n);
	for(long long i=0;i<n;i++){
		scanf("%lld %lld",&a[i].first,&a[i].second);
	}
	sort(a,a+n);
	for(long long i=0;i<n;i++){
		tmp=max(tmp,a[i].first-sum);
		sum+=a[i].second;
		ans=max(ans,sum-a[i].first+tmp);
	}
	printf("%lld",ans);
}

컴파일 시 표준 에러 (stderr) 메시지

art.cpp:2:0: warning: ignoring #pragma GCC Optimize [-Wunknown-pragmas]
 #pragma GCC Optimize ("O3")
 
art.cpp: In function 'int main()':
art.cpp:9:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld",&n);
  ~~~~~^~~~~~~~~~~
art.cpp:11:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld %lld",&a[i].first,&a[i].second);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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