Submission #7409

#	Time	Username	Problem	Language	Result	Execution time	Memory
7409		gs13068	백신 (KOI13_vaccine)	C++98	2.64 / 24	96 ms	3040 KiB

vaccine

#include<cstdio>
#include<algorithm>

int a[100][1000];
int an[100];

long long key[100][2000];

long long hash(int i,int j,int k)
{
  long long res=0;
  int t;
  for(t=0;t<k;t++)res=res*10000+a[i][j+t];
  return res;
}

long long hash2(int i,int j,int k)
{
  long long res=0;
  int t;
  for(t=1;t<=k;t++)res=res*10000+a[i][j+k-t];
  return res;
}

int main()
{
  int i,j,n,m;
  scanf("%d%d",&n,&m);
  for(i=0;i<n;i++)
  {
    scanf("%d",&an[i]);
    for(j=0;j<an[i];j++)scanf("%d",&a[i][j]);
  }
  for(i=0;i<n;i++)for(j=0;j<an[i]-m+1;j++)
  {
    key[i][j*2]=hash(i,j,m);
    key[i][j*2+1]=hash2(i,j,m);
  }
  for(i=0;i<n;i++)std::sort(key[i],key[i]+2*(an[i]-m+1));
  for(j=0;j<2*(an[0]-m+1);j++)
  {
    for(i=1;i<n;i++)if(!std::binary_search(key[i],key[i]+2*(an[i]-m+1),key[0][j]))break;
    if(i==n)break;
  }
  if(j==2*(an[0]-m+1))puts("NO");
  else puts("YES");
}

• Subtask 1: 2.64 / 2.64
• Subtask 2: 0 / 3.12
• Subtask 3: 0 / 3.6
• Subtask 4: 0 / 4.32
• Subtask 5: 0 / 4.8
• Subtask 6: 0 / 5.52