Submission #127266

#	Time	Username	Problem	Language	Result	Execution time	Memory
127266		hungcung	Art Exhibition (JOI18_art)	C++17	100 / 100	263 ms	8316 KiB

art

#include<bits/stdc++.h>
using namespace std;
long long n,sum,ans=INT_MIN,tmp=INT_MIN;
pair<long long,long long> a[500005];
int main(){
	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);
}

Compilation message (stderr)

art.cpp: In function 'int main()':
art.cpp:6:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld",&n);
  ~~~~~^~~~~~~~~~~
art.cpp:8:8: 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