﻿ C : New array by swapping the first and last elements

# C Exercises: Create a new array swapping the first and last elements of a given array of integers and length will be least 1

## C-programming basic algorithm: Exercise-48 with Solution

Write a C program to create a new array by swapping the first and last elements of a given array of integers whose length is at least 1.

C Code:

``````#include <stdio.h>
#include <stdlib.h>

// Function prototype for 'print_array'
void print_array(int parray[], int size);

int main(void){
// Declaration of variables
int arr_size1; // Size of the original array
int nums1[] = {1, 5, 7, 9, 11, 13}; // Declaration and initialization of the original array 'nums1'

// Calculating the size of the original array
arr_size1 = sizeof(nums1)/sizeof(nums1[0]);

// Printing elements in the original array
printf("Elements in original array1 are: ");
print_array(nums1, arr_size1);

// Declaration of the result array with the same size as the original array
int result[arr_size1];

// Copying elements from 'nums1' to 'result'
for (int i = 0; i < arr_size1; i++) {
result[i] = nums1[i];
}

// Swapping the first and last elements
int first = nums1[0];
result[0] = nums1[arr_size1 - 1];
result[arr_size1 - 1] = first;

// Printing elements in the new array after swapping
printf("New array, after swapping first and last elements: ");
print_array(result, arr_size1);
}

// Definition of the 'print_array' function
void print_array(int parray[], int size)
{
int i;
for( i=0; i<size-1; i++)
{
// Printing each element with a comma and a space
printf("%d, ", parray[i]);
}
// Printing the last element without a comma and space
printf("%d ", parray[i]);
// Printing a new line to separate the elements
printf("\n");
}
``````

Sample Output:

```Elements in original array1 are: 1, 5, 7, 9, 11, 13
New array, after swapping first and last elements: 13, 5, 7, 9, 11, 1
```

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Flowchart:

C Programming Code Editor:

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