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Python: Find the maximum length of a substring of unique character in a given string


24. Longest Uniform Substring

Write a Python program to find the maximum length of a substring in a given string where all the characters of the substring are the same. Use the itertools module to solve the problem.

Sample Solution:

Python Code:

import itertools

def max_sub_string(str1):
    return max(len(list(x)) for _, x in itertools.groupby(str1))
    
    
str1 = "aaabbccddeeeee"

print("Original string:",str1)
print("Maximum length of a substring with unique characters of the said string:")
print(max_sub_string(str1))

str1 = "c++ exercises"
print("\nOriginal string:",str1)
print("Maximum length of a substring with unique characters of the said string:")
print(max_sub_string(str1))

Sample Output:

Original string: aaabbccddeeeee
Maximum length of a substring with unique characters of the said string:
5

Original string: c++ exercises
Maximum length of a substring with unique characters of the said string:
2

For more Practice: Solve these Related Problems:

  • Write a Python program to find the maximum length of a substring with identical characters using itertools.groupby.
  • Write a Python program to compute the longest block of repeated characters in a string and return its length using map and max.
  • Write a Python program to iterate over a string and determine the longest sequence where all characters are the same using groupby.
  • Write a Python program to generate a list of uniform substrings from a string and then select the one with the maximum length.

Python Code Editor:


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Previous: Write a Python program to find the shortest distance from a specified character in a given string. Return the shortest distances through a list and use itertools module to solve the problem.

Next: Write a Python program to find the first two elements of a given list whose sum is equal to a given value. Use itertools module to solve the problem.

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