Write a Python program to count number of substrings with same first and last characters of a given string.
Topic: Write a Python program to count number of substrings with same first and last characters of a given string.
Solution
def no_of_substring_with_equalEnds(str1): result = 0; n = len(str1); for i in range(n): for j in range(i, n): if (str1[i] == str1[j]): result = result + 1 return result
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