Problem: N _Snukes_ called Snuke 1, Snuke 2, ..., Snuke N live in a town.  There are K kinds of snacks sold in this town, called Snack 1, Snack 2, ..., Snack K. The following d_i Snukes have Snack i: Snuke A_{i, 1}, A_{i, 2}, \cdots, A_{i, {d_i}}.  Takahashi will walk around this town and make mischief on the Snukes who have no snacks. How many Snukes will fall victim to Takahashi's mischief?

Submission attempts (in order):
if __name__ == "__main__":
  str_N_K = input()
  
  list_N_K = str_N_K.split(' ')
  N = int(list_N_K[0])
  K = int(list_N_K[1])
  
  list_person = [0] * N
  
  for i in range(K):
    d = int(input())
    str_persons = input()
    if (" " in str_persons):
      list_str_persons = str_persons.split(" ")
    else:
      list_str_persons = [str_persons]
      
    for str_person in list_str_persons:
      int_person = int(str_person)
      list_person[int_person] += 1
  
  output = 0
  for person in list_person:
    if person == 0:
      output += 1
      
  print(output)
    
  
  


if __name__ == "__main__":
  str_N_K = input()
  
  list_N_K = str_N_K.split(' ')
  N = int(list_N_K[0])
  K = int(list_N_K[1])
  
  list_person = [0] * N
  
  for i in range(K):
    d = int(input())
    str_persons = input()
    if " " in str_persons:
      list_str_persons = list_str_persons.split(" ")
    else:
      list_str_persons = list_str_persons
      
    for str_person in list_str_persons:
      int_person = int(str_person)
      list_person[int_person] += 1
  
  output = 0
  for person in list_person:
    if person == 0:
      output += 1
      
  print(output)
    
  
  


if __name__ == "__main__":
  str_N_K = input()
  list_N_K = str_N_K.split(' ')
  N = int(list_N_K[0])
  K = int(list_N_K[1])
  
  list_person = [0] * N
  
  for i in range(K):
    d = int(input())
    str_persons = input()
    list_str_persons = str_persons.split(" ")
    for str_person in list_str_persons:
      int_person = int(str_person)
      list_person[int_person] += 1
  
  output = 0
  for person in list_person:
    if person == 0:
      output += 1
      
  print(output)
    
  
  

if __name__ == "__main__":
  str_N_K = input()
  
  list_N_K = str_N_K.split(' ')
  N = int(list_N_K[0])
  K = int(list_N_K[1])
  
  list_person = [0] * N
  
  for i in range(K):
    d = int(input())
    str_persons = input()
    if (" " in str_persons):
      list_str_persons = list_str_persons.split(" ")
    else:
      list_str_persons = list_str_persons
      
    for str_person in list_str_persons:
      int_person = int(str_person)
      list_person[int_person] += 1
  
  output = 0
  for person in list_person:
    if person == 0:
      output += 1
      
  print(output)
    
  
  


if __name__ == "__main__":
  str_N_K = input()
  
  list_N_K = str_N_K.split(' ')
  N = int(list_N_K[0])
  K = int(list_N_K[1])
  
  list_person = [0] * N
  
  for _ in range(K):
    d = int(input())
    str_persons = input()
    if (" " in str_persons):
      list_str_persons = str_persons.split(" ")
    else:
      list_str_persons = [str_persons]
      
    for str_person in list_str_persons:
      int_person = int(str_person)
      list_person[int_person-1] += 1
  
  output = 0
  for person in list_person:
    if person == 0:
      output += 1
      
  print(output)
    
  
  


Verdicts: Runtime Error

Runtime Error

Runtime Error

Runtime Error

Accepted