Question

C++

Let a , b , c be three integer numbers. Write a C++ program with a function:

void rotate(int &a, int &b, int &c)

such that a -> b , b -> c and c -> a, make function calls. (3’)

Function call example: int a=1, b=2, c=3; rotate(a, b, c);

Function output example: a:3 b:1 c:2

Answer 1

/*
 *  C++ Program to rotate three integers
 */

#include <iostream>
using namespace std;

void rotate(int &a, int &b, int &c);

int main()
{
  int a = 1, b = 2, c = 3;

  cout << "a:" << a << ", b:" << b << ", c:" << c << endl;

  rotate(a, b, c);

  cout << "a:" << a << ", b:" << b << ", c:" << c << endl;

  return 0;
}

void rotate(int &a, int &b, int &c)
{
  int temp = b;
  b = a;
  a = c;
  c = temp;
}