Python: Compress repeated character by storing the length of a given string
Python Itertools: Exercise-17 with Solution
Write a Python program to read a given string character by character and compress repeated characters by storing the length of those character(s).
Sample Solution:
Python Code:
from itertools import groupby
def encode_str(input_str):
return [(len(list(n)), m) for m,n in groupby(input_str)]
str1 = "AAASSSSKKIOOOORRRREEETTTTAAAABBBBBBDDDDD"
print("Original string:")
print(str1)
print("Result:")
print(encode_str(str1))
str1 = "jjjjiiiiooooosssnssiiiiwwwweeeaaaabbbddddkkkklll"
print("\nOriginal string:")
print(str1)
print("Result:")
print(encode_str(str1))
Sample Output:
Original string: AAASSSSKKIOOOORRRREEETTTTAAAABBBBBBDDDDD Result: [(3, 'A'), (4, 'S'), (2, 'K'), (1, 'I'), (4, 'O'), (4, 'R'), (3, 'E'), (4, 'T'), (4, 'A'), (6, 'B'), (5, 'D')] Original string: jjjjiiiiooooosssnssiiiiwwwweeeaaaabbbddddkkkklll Result: [(4, 'j'), (4, 'i'), (5, 'o'), (3, 's'), (1, 'n'), (2, 's'), (4, 'i'), (4, 'w'), (3, 'e'), (4, 'a'), (3, 'b'), (4, 'd'), (4, 'k'), (3, 'l')]
Python Code Editor:
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Previous: Write a Python program find the sorted sequence from a set of permutations of a given input.
Next: Write a Python program to generate permutations of n items in which successive permutations differ from each other by the swapping of any two items.
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