Given a string, write a recursive function named count_eq_substr(str) that counts the number of substrings that begin and end with the same letter. For example "aba" has 4 of such substrings, namely "a", "b", "a" and "aba". Note that the first substring "a" and the third substring "a" are different strings. Note: think carefully about base cases and recursion cases for this. #testing your function count ("aba") count ("abcba") count("abca") # The function should return 4 # The function should return 7, where the fitting substrings are "a", # "b", "c", "b", "a", "bcb", and "abcba" # The function should return 5, #where the fitting substrings are "a", # "b", "c", "a", and "abca"

Given a string, write a recursive function named count_eq_substr(str) that counts the number of substrings that begin and end with the same letter. For example "aba" has 4 of such substrings, namely "a", "b", "a" and "aba". Note that the first substring "a" and the third substring "a" are different strings. Note: think carefully about base cases and recursion cases for this. #testing your function count ("aba") count ("abcba") count("abca") # The function should return 4 # The function should return 7, where the fitting substrings are "a", # "b", "c", "b", "a", "bcb", and "abcba" # The function should return 5, #where the fitting substrings are "a", # "b", "c", "a", and "abca"

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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