Submission #159082

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
159082	2019-10-20 15:39:23	TadijaSebez	Worst Reporter 2 (JOI16_worst_reporter2)	C++11	0 / 100	2 ms	508 KiB

worst_reporter2

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#include <bits/stdc++.h>
using namespace std;
const int N=200050;
int a[N],b[N],c[N],d[N];
int main()
{
  int n;
  scanf("%i",&n);
  for(int i=1;i<=n;i++) scanf("%i %i",&a[i],&b[i]);
  for(int i=1;i<=n;i++) scanf("%i %i",&c[i],&d[i]);
  map<int,int> cnt;
  int all=0,ans=n;
  for(int i=n,j=n;i>=1;i--)
  {
    for(;j>=1 && b[j]<=d[i];j--)
    {
      cnt[a[j]]++;
      all++;
    }
    if(cnt[c[i]])
    {
      cnt[c[i]]--;
      ans--;
    }
    all--;
    if(all==0) cnt.clear();
  }
  printf("%i\n",ans);
  return 0;
}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

worst_reporter2.cpp: In function 'int main()':
worst_reporter2.cpp:8:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%i",&n);
  ~~~~~^~~~~~~~~
worst_reporter2.cpp:9:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i=1;i<=n;i++) scanf("%i %i",&a[i],&b[i]);
                        ~~~~~^~~~~~~~~~~~~~~~~~~~~
worst_reporter2.cpp:10:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i=1;i<=n;i++) scanf("%i %i",&c[i],&d[i]);
                        ~~~~~^~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 15
• Subtask 2: 0 / 15
• Subtask 3: 0 / 30
• Subtask 4: 0 / 40