Chapter 3, Problem 19C

Explanation of Solution

Program code:

//include the required header files

#include <iostream>

#include <string>

#include <algorithm>

//use std namespace

using namespace std;

//declare a function revStr()

void revStr(string::iterator begin, string::iterator end);

//define main() function

int main(int argc, char *argv[])

{

//create a string s.

string s;

//iterate a while loop

while (true)

{

//print the symbol

cout << "> ";

//get the values

getline(cin,s);

//call the function revStr() to reverse the value

revStr(s.begin(), s.end());

//print the value of s

cout << s << endl;

}

//return

return 0;

}

//define the functio

void revStr(string::iterator begin, string::iterator end)

{

//if the condition is true,

if (end <= begin)

//return

return;

//swap the values