Dada una lista de strings, escriba un programa en Python para verificar si cada string tiene todos los caracteres iguales o no. A continuación se presentan algunos métodos para verificar lo mismo.
Método n.º 1: uso del método ingenuo [ineficiente]
# Python code to demonstrate
# to check whether string contains
# all characters same or not
# Initialising string list
ini_list = ["aaaaaaaaaaa", "aaaaaaabaa"]
# Printing initial string
print ("Initial Strings list", ini_list)
# Using Naive Method:
flag = True
for i in ini_list:
for j in range(0, len(i)-1):
if i[j]!= i[j + 1]:
print ("String {} don't have all characters same".format(i))
flag = False
break
if flag == True:
print ("String {} don't have all characters same".format(i))
Producción:
Initial Strings list ['aaaaaaaaaaa', 'aaaaaaabaa'] String aaaaaaaaaaa don't have all characters same String aaaaaaabaa don't have all characters same
Método n.º 2: uso de comparaciones de strings
# Python code to demonstrate
# to check whether string contains
# all characters same or not
# Initialising string list
ini_list = ["aaaaaaaaaaa", "aaaaaaabaa"]
# Printing initial string
print ("Initial Strings list", ini_list)
# Using String comparison
for i in ini_list:
if i == len(i)*i[0]:
print ("String {} have all characters same".format(i))
else:
print ("String {} don't have all characters same".format(i))
Producción:
Initial Strings list ['aaaaaaaaaaa', 'aaaaaaabaa'] String aaaaaaaaaaa have all characters same String aaaaaaabaa don't have all characters same
Método n.° 3: usar la comparación de conteo
# Python code to demonstrate
# to check whether string contains
# all characters same or not
# Initialising string list
ini_list = ["aaaaaaaaaaa", "aaaaaaabaa"]
# Printing initial string
print ("Initial Strings list", ini_list)
# Using String comparison
for i in ini_list:
if i.count(i[0]) == len(i):
print ("String {} have all characters same".format(i))
else:
print ("String {} don't have all characters same".format(i))
Producción:
Initial Strings list ['aaaaaaaaaaa', 'aaaaaaabaa'] String aaaaaaaaaaa have all characters same String aaaaaaabaa don't have all characters same
Publicación traducida automáticamente
Artículo escrito por garg_ak0109 y traducido por Barcelona Geeks. The original can be accessed here. Licence: CCBY-SA