Reverse a String in C++

 Machine Problem in C++

  Write a program to ask the user to give a string and then the program will reverse the given string and display the results on the screen.

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Program Listing

/* 

 Machine Problem in C++

 

 Write a program to ask the user to give a string and then

 the program will reverse the given string and display the

 results on the screen.

 

 reverse_string.cpp

 Mr. Jake Rodriguez Pomperada, MAED-IT,MIT

 www.jakerpomperada.com

 www.jakerpomperada.blogspot.com

 jakerpomperada@gmail.com

 Bacolod City, Negros Occidental Philippines

 

 */

 

#include <iostream>

int main() {

 

  std::string greeting,display_original;

  

  std::cout << "\n\n";

  std::cout << "\tReverse a String in C++";

  std::cout << "\n\n";

  std::cout << "\tGive a String : ";

  std::getline(std::cin,greeting);

  

  display_original = greeting;

  

  int len = greeting.length();

  int n=len-1;

  for(int i=0;i<(len/2);i++){

  

    std::swap(greeting[i],greeting[n]);

    n = n-1;

  }

    

  std::cout << "\n\n";

  std::cout << "\tDisplay Results";

  std::cout << "\n\n";

  std::cout << "\t Original String : " << display_original;

  std::cout << "\n\n";

  std::cout << "\t Reverse  String : " << greeting;

  std::cout << "\n\n";

  std::cout << "\tEnd of Program";

  std::cout << "\n\n";

  }