include[HTML_REMOVED]
int a[10000],s[10000],count;
int main()
{
int n;
scanf(“%d”,&n);
for(int i=0;i[HTML_REMOVED]1)
{
s[a[j]]–;
j++;
}
count=(i-j+1)>count?(i-j+1):count;
}
printf(“%d”,count);
return 0;
}