Question

C++

Write a function SwapArrayEnds() that swaps the first and last elements of the function's array parameter. Ex: sortArray = {10, 20, 30, 40} becomes {40, 20, 30, 10}. The array's size may differ from 4.

#include <iostream>
using namespace std;

/* Your solution goes here */

int main() {
   const int SORT_ARR_SIZE = 4;
   int sortArray[SORT_ARR_SIZE];
   int i = 0;

   sortArray[0] = 10;
   sortArray[1] = 20;
   sortArray[2] = 30;
   sortArray[3] = 40;

   SwapArrayEnds(sortArray, SORT_ARR_SIZE);

   for (i = 0; i < SORT_ARR_SIZE; ++i) {
      cout << sortArray[i] << " ";
   }
   cout << endl;

   return 0;
}

.

Answer 1

Screenshot of the code:

Output:

40 20 30 10

Code to copy:

//Include this header file while using visual studio.

#include "stdafx.h"

#include <iostream>

using namespace std;

//Define the function to swap the first and last

//element of the array.

void SwapArrayEnds(int sortArray[], int SORT_ARR_SIZE)

{

       //Define the temporary variable.

       int t;

       //Swap the first and last element of the array.

       t = sortArray[0];

       sortArray[0] = sortArray[SORT_ARR_SIZE - 1];

       sortArray[SORT_ARR_SIZE - 1] = t;

}

int main() {

       const int SORT_ARR_SIZE = 4;

       int sortArray[SORT_ARR_SIZE];

       int i = 0;

       sortArray[0] = 10;

       sortArray[1] = 20;

       sortArray[2] = 30;

       sortArray[3] = 40;

       SwapArrayEnds(sortArray, SORT_ARR_SIZE);

       for (i = 0; i < SORT_ARR_SIZE; ++i) {

              cout << sortArray[i] << " ";

       }

       cout << endl;

       system("pause");

       return 0;

}