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a) Explain in your own words why the stringSort function will return a string with the characters of s sorted in ascending order, for any string s.

a) Explain in your own words why the stringSort function will return a string with the characters of s sorted in ascending order, for any string s.

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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a) Explain in your own words why the stringSort function will return a string with the characters of s sorted in ascending order, for any string s. 

Here is C++ code for a function that sorts strings string stringSort (string s) { if (s.length () <= 1) return s; string temp = stringSort (s.substr (1)) ; if (s[0] <= temp[0]) // code in red is an item comparison { return s[0] + temp; } return temp [0] + stringSort (s[0] + temp.substr (1)); } Notes: s.substr(1) returns the substring of s that excludes the first character e.g. if s is "abc" then s.substr(1) is "bc". The plus operator means string concatenation. For example 'a' + "bc" gives the string "abc".
Transcribed Image Text:Here is C++ code for a function that sorts strings string stringSort (string s) { if (s.length () <= 1) return s; string temp = stringSort (s.substr (1)) ; if (s[0] <= temp[0]) // code in red is an item comparison { return s[0] + temp; } return temp [0] + stringSort (s[0] + temp.substr (1)); } Notes: s.substr(1) returns the substring of s that excludes the first character e.g. if s is "abc" then s.substr(1) is "bc". The plus operator means string concatenation. For example 'a' + "bc" gives the string "abc".
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