Submission #41097

#	Time	Username	Problem	Language	Result	Execution time	Memory
41097		IvanC	Art Exhibition (JOI18_art)	C++14	100 / 100	290 ms	12508 KiB

art

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll,ll> ii;
const int MAXN = 5*1e5 + 10;
ii vetor[MAXN];
ll soma[MAXN],maximo,N,ans;
int main(){
	scanf("%lld",&N);
	for(ll i = 1;i<=N;i++){
		scanf("%lld %lld",&vetor[i].first,&vetor[i].second);
	}
	sort(vetor+1,vetor+N+1);
	for(ll i = 1;i<=N;i++){
		soma[i] = soma[i-1] + vetor[i].second;
	}
	maximo = soma[N] - vetor[N].first;
	for(ll i = N;i>=1;i--){
		maximo = max(maximo,  soma[i] - vetor[i].first );
		ans = max(ans, maximo + vetor[i].first - soma[i-1] );
	}
	printf("%lld\n",ans);
	return 0;
}

Compilation message (stderr)

art.cpp: In function 'int main()':
art.cpp:9:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld",&N);
                  ^
art.cpp:11:54: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld %lld",&vetor[i].first,&vetor[i].second);
                                                      ^

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