Dada una lista, la tarea es eliminar todos los elementos de la lista que contiene los dígitos específicos.
Ejemplos:
Input: lst = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 13, 15, 16]
no_delete = ['2', '3', '4', '0']
Output: [1, 5, 6, 7, 8, 9, 11, 15, 16]
Explanation:
Numbers 2, 3, 4, 10, 12, 13, 14 contains digits
from no_delete, therefore remove them.
Input: lst = [1, 2, 3, 4, 5, 6, 7, 8, 13, 15, 16]
no_delete = {'6', '5', '4', '3'}
Output: [1, 2, 7, 8, 9, 10, 11, 12]
Explanation:
Numbers 3, 4, 5, 6, 13, 14, 15, 16 contains digits
from no_delete, therefore remove them.
A continuación se presentan algunos métodos para realizar la tarea.
Método #1: Usar la iteración
# Python code to remove all those elements
# from list which contains certain digits
# Input List Initialisation
Input = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 13, 15, 16]
# Numbers to delete
no_delete = [1, 0]
# Output List Initialisation
Output = []
# Using iteration to remove all the elements
for elem in Input:
flag = 1
temp = elem
while elem > 0:
rem = elem % 10
elem = elem//10
if rem in no_delete:
flag = 0
if flag == 1:
Output.append(temp)
# Printing Output
print("Initial list is :", Input)
print("Delete list :", no_delete)
print("List after removing elements is :", Output)
Producción:
Initial list is : [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 13, 15, 16] Delete list : [1, 0] List after removing elements is : [2, 3, 4, 5, 6, 7, 8, 9]
Método n.º 2: uso de la comprensión de listas y cualquier función()
# Python code to remove all those elements from list
# which contains certain digits
# Input List Initialisation
Input = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 13, 15, 16]
# Numbers to delete
no_delete = ['2', '3', '4', '0']
# using list comprehension and any()
Output = [a for a in Input if not
any(b in no_delete for b in str(a))]
# Printing Output
print("Initial list is :", Input)
print("Delete list :", no_delete)
print("List after removing elements is :", Output)
Producción:
Initial list is : [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 13, 15, 16] Delete list : ['2', '3', '4', '0'] List after removing elements is : [1, 5, 6, 7, 8, 9, 11, 15, 16]
Método n.º 3: Usar la comprensión de listas y set()
# Python code to remove all those elements from list
# which contains certain digits
# Input List Initialisation
Input = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 13, 15, 16]
# Numbers to delete
no_delete = {'6', '5', '4', '3'}
# Using list comprehension and set
Output = [x for x in Input
if not no_delete & set(str(x))]
# Printing Output
print("Initial list is :", Input)
print("Delete list :", no_delete)
print("List after removing elements is :", Output)
Producción:
Initial list is : [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 13, 15, 16]
Delete list : {'3', '4', '6', '5'}
List after removing elements is : [1, 2, 7, 8, 9, 10, 11, 12]
Publicación traducida automáticamente
Artículo escrito por everythingispossible y traducido por Barcelona Geeks. The original can be accessed here. Licence: CCBY-SA