You are given a string of any length. Return a new string consisting of the first and last characters concatenated together. You cannot use the at() member function or the subscript operator []. If the is less than length 2, return the original string.
You are given a string of any length. Return a new string consisting of the first and last characters concatenated together. You cannot use the at() member function or the subscript operator []. If the is less than length 2, return the original string.
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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Question
C++
![You are given a string of any length. Return a new string consisting of the first and last characters
concatenated together. You cannot use the at() member function or the subscript operator []. If the
is less than length 2, return the original string.
main.cpp
1 #include <string>
2 using namespace std;
3 /**
4
Returns a string consisting of the first and last characters.
@param s the string to processes
@return the first and last characters concatenated together.
*/
5
string firstLast(const string& s)
{
// Write your function here
11
10
auto ans = string(1,s[0])+s.back();
12
return ans;
13
14
15
int main()
16
{
17
string s = "abcd";
18
cout<<firstlast(s);
19
return 0
20
21
22 }
CodeCheck
Reset
Error:
main.cpp: You cannot use the subscript operator.
Score](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F106deb3a-350e-4315-9d8d-232968b9bf08%2Fcc42a534-1e24-4f28-9988-50316845ca51%2Fm3g6o3_processed.jpeg&w=3840&q=75)
Transcribed Image Text:You are given a string of any length. Return a new string consisting of the first and last characters
concatenated together. You cannot use the at() member function or the subscript operator []. If the
is less than length 2, return the original string.
main.cpp
1 #include <string>
2 using namespace std;
3 /**
4
Returns a string consisting of the first and last characters.
@param s the string to processes
@return the first and last characters concatenated together.
*/
5
string firstLast(const string& s)
{
// Write your function here
11
10
auto ans = string(1,s[0])+s.back();
12
return ans;
13
14
15
int main()
16
{
17
string s = "abcd";
18
cout<<firstlast(s);
19
return 0
20
21
22 }
CodeCheck
Reset
Error:
main.cpp: You cannot use the subscript operator.
Score
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