Merge pull request #1111 from ycanas/ycanas

#4 - Python

Author: mouredev

Roadmap/04 - CADENAS DE CARACTERES/python/ycanas.py

@@ -0,0 +1,102 @@
+# --------- Strings
+
+my_string: str = "Soy un String"
+
+# I. Acceso
+print("Acceso:", my_string[5])
+
+# II. Subcadenas
+my_sub_string = my_string[0:10]
+print("Subcadenas:", my_sub_string)
+
+# III. Longitud
+print("Longitud:", len(my_string))
+
+# IV. Concatenación
+my_string = my_string + " :)"
+print("Concatenación:", my_string)
+
+# V. Repetición
+print("Repetición:", my_string * 2)
+
+# VI. Recorridio
+print("Recorrido (for each): ", end='')
+for letter in my_string:
+  print(letter, end='')
+print()
+
+
+print("Recorrido (while): ", end='')
+counter = 0
+while counter != len(my_string):
+  print(my_string[counter], end='')
+  counter = counter + 1
+print()
+
+# VII. Mayusculas
+print("Conversión a mayusculas:", my_string.upper())
+
+# VIII. Minisculas
+print("Conversión a minusculas:", my_string.lower())
+
+# IX. Reemplazo
+my_string = my_string.replace("un String", "una Cadena")
+print("Reemplazo:", my_string)
+
+# X. División
+my_split_string = my_string.split()
+print("División:", my_split_string)
+
+# XI. Union
+my_join_string = " ".join(my_split_string)
+print("Union:", my_join_string)
+
+# XII. Interpolación
+print(f"Interpolación: {my_string}")
+
+# XIII. Verificación
+print("Verificación:")
+print("String" in my_string)
+print(my_string.isdigit())
+print(my_string.islower())
+print(my_string.startswith("Soy"))
+print(not my_string.isalpha())
+
+
+# --------- Extra
+import re
+
+
+def only_letters(string):
+  return re.sub(r"[^a-z]", '', string.lower())
+
+
+def is_palindrome(string):
+  return only_letters(string) == string[::-1]
+
+
+def is_anagram(string_1, string_2):
+  return sorted(only_letters(string_1)) == sorted(only_letters(string_2))
+
+
+def is_isogram(string):
+  stack: dict = {}
+
+  for letter in only_letters(string):
+        if letter in stack:
+            stack[letter] += 1
+
+        else:
+            stack[letter] = 1
+
+  return len(set(stack.values())) == 1
+
+
+print(is_palindrome("radar"))
+print(is_palindrome("coco"))
+
+print(is_anagram("cola", "loca"))
+print(is_anagram("nona", "nono"))
+
+print(is_isogram("carbon"))
+print(is_isogram("carbonara"))