Submission #41097

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
41097	2018-02-12 16:35:09	IvanC	Art Exhibition (JOI18_art)	C++14	100 / 100	290 ms	12508 KiB

art

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#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;
}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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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